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Finding the Fourth Proportional to 704,854.56, 972,673.28 and 382,557.74

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Solution

The fourth proportional to 704,854.56, 972,673.28 and 382,557.74 is: 527,915.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,854.56 : 972,673.28 = 382,557.74 : x
  2. Step 2: Convert to fraction form
    704,854.56/972,673.28 = 382,557.74/x
  3. Step 3: Cross multiply
    704,854.56x = 972,673.28 × 382,557.74
  4. Step 4: Simplify right side
    704,854.56x = 372,103,692,602.21
  5. Step 5: Solve for x
    x = 372,103,692,602.21/704,854.56
  6. Step 6: Final answer
    x = 527,915.56

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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.