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Finding the Fourth Proportional to 654,232.60, 985,801.75 and 538,499.80

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Solution

The fourth proportional to 654,232.60, 985,801.75 and 538,499.80 is: 811,414.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,232.60 : 985,801.75 = 538,499.80 : x
  2. Step 2: Convert to fraction form
    654,232.60/985,801.75 = 538,499.80/x
  3. Step 3: Cross multiply
    654,232.60x = 985,801.75 × 538,499.80
  4. Step 4: Simplify right side
    654,232.60x = 530,854,045,214.65
  5. Step 5: Solve for x
    x = 530,854,045,214.65/654,232.60
  6. Step 6: Final answer
    x = 811,414.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.