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Finding the Fourth Proportional to 636,131.80, 954,197.70 and 531,933.40

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Solution

The fourth proportional to 636,131.80, 954,197.70 and 531,933.40 is: 797,900.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,131.80 : 954,197.70 = 531,933.40 : x
  2. Step 2: Convert to fraction form
    636,131.80/954,197.70 = 531,933.40/x
  3. Step 3: Cross multiply
    636,131.80x = 954,197.70 × 531,933.40
  4. Step 4: Simplify right side
    636,131.80x = 507,569,626,833.18
  5. Step 5: Solve for x
    x = 507,569,626,833.18/636,131.80
  6. Step 6: Final answer
    x = 797,900.10

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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.