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Finding the Fourth Proportional to 425,389.44, 587,049.78 and 234,415.13

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Solution

The fourth proportional to 425,389.44, 587,049.78 and 234,415.13 is: 323,499.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,389.44 : 587,049.78 = 234,415.13 : x
  2. Step 2: Convert to fraction form
    425,389.44/587,049.78 = 234,415.13/x
  3. Step 3: Cross multiply
    425,389.44x = 587,049.78 × 234,415.13
  4. Step 4: Simplify right side
    425,389.44x = 137,613,349,323.10
  5. Step 5: Solve for x
    x = 137,613,349,323.10/425,389.44
  6. Step 6: Final answer
    x = 323,499.68

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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.