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Finding the Fourth Proportional to 924,806.80, 1,387,210.20 and 714,854.80

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Solution

The fourth proportional to 924,806.80, 1,387,210.20 and 714,854.80 is: 1,072,282.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    924,806.80 : 1,387,210.20 = 714,854.80 : x
  2. Step 2: Convert to fraction form
    924,806.80/1,387,210.20 = 714,854.80/x
  3. Step 3: Cross multiply
    924,806.80x = 1,387,210.20 × 714,854.80
  4. Step 4: Simplify right side
    924,806.80x = 991,653,870,078.96
  5. Step 5: Solve for x
    x = 991,653,870,078.96/924,806.80
  6. Step 6: Final answer
    x = 1,072,282.20

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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.