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Finding the Fourth Proportional to 687,508,964.80, 1,029,751,792.80 and 596,809,700.80

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Solution

The fourth proportional to 687,508,964.80, 1,029,751,792.80 and 596,809,700.80 is: 893,902,321.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,508,964.80 : 1,029,751,792.80 = 596,809,700.80 : x
  2. Step 2: Convert to fraction form
    687,508,964.80/1,029,751,792.80 = 596,809,700.80/x
  3. Step 3: Cross multiply
    687,508,964.80x = 1,029,751,792.80 × 596,809,700.80
  4. Step 4: Simplify right side
    687,508,964.80x = 614,565,859,359,231,488
  5. Step 5: Solve for x
    x = 614,565,859,359,231,488/687,508,964.80
  6. Step 6: Final answer
    x = 893,902,321.02

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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.