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Finding the Fourth Proportional to 392,468.10, 588,702.15 and 235,004.10

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Solution

The fourth proportional to 392,468.10, 588,702.15 and 235,004.10 is: 352,506.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,468.10 : 588,702.15 = 235,004.10 : x
  2. Step 2: Convert to fraction form
    392,468.10/588,702.15 = 235,004.10/x
  3. Step 3: Cross multiply
    392,468.10x = 588,702.15 × 235,004.10
  4. Step 4: Simplify right side
    392,468.10x = 138,347,418,928.82
  5. Step 5: Solve for x
    x = 138,347,418,928.82/392,468.10
  6. Step 6: Final answer
    x = 352,506.15

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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.