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Finding the Fourth Proportional to 425,690.67, 587,457.09 and 234,710.85

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Solution

The fourth proportional to 425,690.67, 587,457.09 and 234,710.85 is: 323,903.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,690.67 : 587,457.09 = 234,710.85 : x
  2. Step 2: Convert to fraction form
    425,690.67/587,457.09 = 234,710.85/x
  3. Step 3: Cross multiply
    425,690.67x = 587,457.09 × 234,710.85
  4. Step 4: Simplify right side
    425,690.67x = 137,882,552,932.43
  5. Step 5: Solve for x
    x = 137,882,552,932.43/425,690.67
  6. Step 6: Final answer
    x = 323,903.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.