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Finding the Fourth Proportional to 651,646,422.20, 977,469,633.30 and 651,646,422.20

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Solution

The fourth proportional to 651,646,422.20, 977,469,633.30 and 651,646,422.20 is: 977,469,633.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,646,422.20 : 977,469,633.30 = 651,646,422.20 : x
  2. Step 2: Convert to fraction form
    651,646,422.20/977,469,633.30 = 651,646,422.20/x
  3. Step 3: Cross multiply
    651,646,422.20x = 977,469,633.30 × 651,646,422.20
  4. Step 4: Simplify right side
    651,646,422.20x = 636,964,589,349,090,944
  5. Step 5: Solve for x
    x = 636,964,589,349,090,944/651,646,422.20
  6. Step 6: Final answer
    x = 977,469,633.30

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Half scale
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Double scale
Find fourth proportional to 651,646,423.20, 977,469,634.80 and 651,646,423.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.