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Finding the Fourth Proportional to 633,468.64, 874,200.80 and 361,531.12

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Solution

The fourth proportional to 633,468.64, 874,200.80 and 361,531.12 is: 498,920.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,468.64 : 874,200.80 = 361,531.12 : x
  2. Step 2: Convert to fraction form
    633,468.64/874,200.80 = 361,531.12/x
  3. Step 3: Cross multiply
    633,468.64x = 874,200.80 × 361,531.12
  4. Step 4: Simplify right side
    633,468.64x = 316,050,794,328.90
  5. Step 5: Solve for x
    x = 316,050,794,328.90/633,468.64
  6. Step 6: Final answer
    x = 498,920.98

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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.