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Finding the Fourth Proportional to 425,439.81, 587,119.23 and 234,465.50

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Solution

The fourth proportional to 425,439.81, 587,119.23 and 234,465.50 is: 323,569.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,439.81 : 587,119.23 = 234,465.50 : x
  2. Step 2: Convert to fraction form
    425,439.81/587,119.23 = 234,465.50/x
  3. Step 3: Cross multiply
    425,439.81x = 587,119.23 × 234,465.50
  4. Step 4: Simplify right side
    425,439.81x = 137,659,200,885.97
  5. Step 5: Solve for x
    x = 137,659,200,885.97/425,439.81
  6. Step 6: Final answer
    x = 323,569.16

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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.