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Finding the Fourth Proportional to 486,892.40, 730,338.60 and 154,468.40

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Solution

The fourth proportional to 486,892.40, 730,338.60 and 154,468.40 is: 231,702.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,892.40 : 730,338.60 = 154,468.40 : x
  2. Step 2: Convert to fraction form
    486,892.40/730,338.60 = 154,468.40/x
  3. Step 3: Cross multiply
    486,892.40x = 730,338.60 × 154,468.40
  4. Step 4: Simplify right side
    486,892.40x = 112,814,235,000.24
  5. Step 5: Solve for x
    x = 112,814,235,000.24/486,892.40
  6. Step 6: Final answer
    x = 231,702.60

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Similar ratio
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1.5x scale

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.