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Finding the Fourth Proportional to 716,397.93, 987,950.59 and 458,356.53

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Solution

The fourth proportional to 716,397.93, 987,950.59 and 458,356.53 is: 632,097.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,397.93 : 987,950.59 = 458,356.53 : x
  2. Step 2: Convert to fraction form
    716,397.93/987,950.59 = 458,356.53/x
  3. Step 3: Cross multiply
    716,397.93x = 987,950.59 × 458,356.53
  4. Step 4: Simplify right side
    716,397.93x = 452,833,606,713.73
  5. Step 5: Solve for x
    x = 452,833,606,713.73/716,397.93
  6. Step 6: Final answer
    x = 632,097.87

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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.