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Finding the Fourth Proportional to 699,707.97, 966,139.46 and 546,478.65

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Solution

The fourth proportional to 699,707.97, 966,139.46 and 546,478.65 is: 754,564.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,707.97 : 966,139.46 = 546,478.65 : x
  2. Step 2: Convert to fraction form
    699,707.97/966,139.46 = 546,478.65/x
  3. Step 3: Cross multiply
    699,707.97x = 966,139.46 × 546,478.65
  4. Step 4: Simplify right side
    699,707.97x = 527,974,584,348.03
  5. Step 5: Solve for x
    x = 527,974,584,348.03/699,707.97
  6. Step 6: Final answer
    x = 754,564.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.