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Finding the Fourth Proportional to 527,418.11, 791,646.91 and 375,783.60

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Solution

The fourth proportional to 527,418.11, 791,646.91 and 375,783.60 is: 564,045.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,418.11 : 791,646.91 = 375,783.60 : x
  2. Step 2: Convert to fraction form
    527,418.11/791,646.91 = 375,783.60/x
  3. Step 3: Cross multiply
    527,418.11x = 791,646.91 × 375,783.60
  4. Step 4: Simplify right side
    527,418.11x = 297,487,925,768.68
  5. Step 5: Solve for x
    x = 297,487,925,768.68/527,418.11
  6. Step 6: Final answer
    x = 564,045.72

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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.