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Finding the Fourth Proportional to 527,565.18, 728,005.41 and 336,558

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Solution

The fourth proportional to 527,565.18, 728,005.41 and 336,558 is: 464,428.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,565.18 : 728,005.41 = 336,558 : x
  2. Step 2: Convert to fraction form
    527,565.18/728,005.41 = 336,558/x
  3. Step 3: Cross multiply
    527,565.18x = 728,005.41 × 336,558
  4. Step 4: Simplify right side
    527,565.18x = 245,016,044,778.78
  5. Step 5: Solve for x
    x = 245,016,044,778.78/527,565.18
  6. Step 6: Final answer
    x = 464,428.01

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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.