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Finding the Fourth Proportional to 530,025.78, 731,454.97 and 294,286.32

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Solution

The fourth proportional to 530,025.78, 731,454.97 and 294,286.32 is: 406,125.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,025.78 : 731,454.97 = 294,286.32 : x
  2. Step 2: Convert to fraction form
    530,025.78/731,454.97 = 294,286.32/x
  3. Step 3: Cross multiply
    530,025.78x = 731,454.97 × 294,286.32
  4. Step 4: Simplify right side
    530,025.78x = 215,257,191,367.01
  5. Step 5: Solve for x
    x = 215,257,191,367.01/530,025.78
  6. Step 6: Final answer
    x = 406,125.89

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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.