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Finding the Fourth Proportional to 534,122.20, 801,312.90 and 376,658.20

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Solution

The fourth proportional to 534,122.20, 801,312.90 and 376,658.20 is: 565,078.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,122.20 : 801,312.90 = 376,658.20 : x
  2. Step 2: Convert to fraction form
    534,122.20/801,312.90 = 376,658.20/x
  3. Step 3: Cross multiply
    534,122.20x = 801,312.90 × 376,658.20
  4. Step 4: Simplify right side
    534,122.20x = 301,821,074,550.78
  5. Step 5: Solve for x
    x = 301,821,074,550.78/534,122.20
  6. Step 6: Final answer
    x = 565,078.69

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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.