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Finding the Fourth Proportional to 534,758.80, 802,138.20 and 531,648.40

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Solution

The fourth proportional to 534,758.80, 802,138.20 and 531,648.40 is: 797,472.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,758.80 : 802,138.20 = 531,648.40 : x
  2. Step 2: Convert to fraction form
    534,758.80/802,138.20 = 531,648.40/x
  3. Step 3: Cross multiply
    534,758.80x = 802,138.20 × 531,648.40
  4. Step 4: Simplify right side
    534,758.80x = 426,455,490,608.88
  5. Step 5: Solve for x
    x = 426,455,490,608.88/534,758.80
  6. Step 6: Final answer
    x = 797,472.60

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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.