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Finding the Fourth Proportional to 629,857,400.40, 944,786,100.60 and 626,031,025.20

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Solution

The fourth proportional to 629,857,400.40, 944,786,100.60 and 626,031,025.20 is: 939,046,537.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,857,400.40 : 944,786,100.60 = 626,031,025.20 : x
  2. Step 2: Convert to fraction form
    629,857,400.40/944,786,100.60 = 626,031,025.20/x
  3. Step 3: Cross multiply
    629,857,400.40x = 944,786,100.60 × 626,031,025.20
  4. Step 4: Simplify right side
    629,857,400.40x = 591,465,411,153,328,384
  5. Step 5: Solve for x
    x = 591,465,411,153,328,384/629,857,400.40
  6. Step 6: Final answer
    x = 939,046,537.80

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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.