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Finding the Fourth Proportional to 425,901, 587,750.43 and 232,308.78

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Solution

The fourth proportional to 425,901, 587,750.43 and 232,308.78 is: 320,589.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,901 : 587,750.43 = 232,308.78 : x
  2. Step 2: Convert to fraction form
    425,901/587,750.43 = 232,308.78/x
  3. Step 3: Cross multiply
    425,901x = 587,750.43 × 232,308.78
  4. Step 4: Simplify right side
    425,901x = 136,539,585,337.78
  5. Step 5: Solve for x
    x = 136,539,585,337.78/425,901
  6. Step 6: Final answer
    x = 320,589.96

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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.