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Finding the Fourth Proportional to 423,755.60, 584,787 and 230,165.18

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Solution

The fourth proportional to 423,755.60, 584,787 and 230,165.18 is: 317,630.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,755.60 : 584,787 = 230,165.18 : x
  2. Step 2: Convert to fraction form
    423,755.60/584,787 = 230,165.18/x
  3. Step 3: Cross multiply
    423,755.60x = 584,787 × 230,165.18
  4. Step 4: Simplify right side
    423,755.60x = 134,597,602,192.73
  5. Step 5: Solve for x
    x = 134,597,602,192.73/423,755.60
  6. Step 6: Final answer
    x = 317,630.27

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1.5x scale

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.