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Finding the Fourth Proportional to 651,630,911.20, 977,446,366.80 and 651,630,911.20

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Solution

The fourth proportional to 651,630,911.20, 977,446,366.80 and 651,630,911.20 is: 977,446,366.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,630,911.20 : 977,446,366.80 = 651,630,911.20 : x
  2. Step 2: Convert to fraction form
    651,630,911.20/977,446,366.80 = 651,630,911.20/x
  3. Step 3: Cross multiply
    651,630,911.20x = 977,446,366.80 × 651,630,911.20
  4. Step 4: Simplify right side
    651,630,911.20x = 636,934,266,647,013,504
  5. Step 5: Solve for x
    x = 636,934,266,647,013,504/651,630,911.20
  6. Step 6: Final answer
    x = 977,446,366.80

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Half scale
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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.