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Finding the Fourth Proportional to 573,187.60, 859,781.40 and 396,240.40

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Solution

The fourth proportional to 573,187.60, 859,781.40 and 396,240.40 is: 594,360.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,187.60 : 859,781.40 = 396,240.40 : x
  2. Step 2: Convert to fraction form
    573,187.60/859,781.40 = 396,240.40/x
  3. Step 3: Cross multiply
    573,187.60x = 859,781.40 × 396,240.40
  4. Step 4: Simplify right side
    573,187.60x = 340,680,125,848.56
  5. Step 5: Solve for x
    x = 340,680,125,848.56/573,187.60
  6. Step 6: Final answer
    x = 594,360.60

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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.