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Finding the Fourth Proportional to 564,314.96, 779,022.56 and 357,686.59

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Solution

The fourth proportional to 564,314.96, 779,022.56 and 357,686.59 is: 493,777.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,314.96 : 779,022.56 = 357,686.59 : x
  2. Step 2: Convert to fraction form
    564,314.96/779,022.56 = 357,686.59/x
  3. Step 3: Cross multiply
    564,314.96x = 779,022.56 × 357,686.59
  4. Step 4: Simplify right side
    564,314.96x = 278,645,921,414.81
  5. Step 5: Solve for x
    x = 278,645,921,414.81/564,314.96
  6. Step 6: Final answer
    x = 493,777.31

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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.