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Finding the Fourth Proportional to 516,707.43, 773,939.45 and 249,908.46

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Solution

The fourth proportional to 516,707.43, 773,939.45 and 249,908.46 is: 374,320.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,707.43 : 773,939.45 = 249,908.46 : x
  2. Step 2: Convert to fraction form
    516,707.43/773,939.45 = 249,908.46/x
  3. Step 3: Cross multiply
    516,707.43x = 773,939.45 × 249,908.46
  4. Step 4: Simplify right side
    516,707.43x = 193,414,016,082.75
  5. Step 5: Solve for x
    x = 193,414,016,082.75/516,707.43
  6. Step 6: Final answer
    x = 374,320.18

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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.