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Finding the Fourth Proportional to 622,891,972.80, 934,337,959.20 and 622,891,972.80

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Solution

The fourth proportional to 622,891,972.80, 934,337,959.20 and 622,891,972.80 is: 934,337,959.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,891,972.80 : 934,337,959.20 = 622,891,972.80 : x
  2. Step 2: Convert to fraction form
    622,891,972.80/934,337,959.20 = 622,891,972.80/x
  3. Step 3: Cross multiply
    622,891,972.80x = 934,337,959.20 × 622,891,972.80
  4. Step 4: Simplify right side
    622,891,972.80x = 581,991,614,668,013,952
  5. Step 5: Solve for x
    x = 581,991,614,668,013,952/622,891,972.80
  6. Step 6: Final answer
    x = 934,337,959.20

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Double scale
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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.