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Finding the Fourth Proportional to 651,657,189.70, 977,485,784.55 and 651,657,189.70

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Solution

The fourth proportional to 651,657,189.70, 977,485,784.55 and 651,657,189.70 is: 977,485,784.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,657,189.70 : 977,485,784.55 = 651,657,189.70 : x
  2. Step 2: Convert to fraction form
    651,657,189.70/977,485,784.55 = 651,657,189.70/x
  3. Step 3: Cross multiply
    651,657,189.70x = 977,485,784.55 × 651,657,189.70
  4. Step 4: Simplify right side
    651,657,189.70x = 636,985,639,331,552,640
  5. Step 5: Solve for x
    x = 636,985,639,331,552,640/651,657,189.70
  6. Step 6: Final answer
    x = 977,485,784.55

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Double scale
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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.