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Finding the Fourth Proportional to 534,954.70, 801,989.79 and 417,148.30

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Solution

The fourth proportional to 534,954.70, 801,989.79 and 417,148.30 is: 625,377.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,954.70 : 801,989.79 = 417,148.30 : x
  2. Step 2: Convert to fraction form
    534,954.70/801,989.79 = 417,148.30/x
  3. Step 3: Cross multiply
    534,954.70x = 801,989.79 × 417,148.30
  4. Step 4: Simplify right side
    534,954.70x = 334,548,677,515.86
  5. Step 5: Solve for x
    x = 334,548,677,515.86/534,954.70
  6. Step 6: Final answer
    x = 625,377.58

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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.