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Finding the Fourth Proportional to 425,452.05, 587,149.79 and 234,465.21

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Solution

The fourth proportional to 425,452.05, 587,149.79 and 234,465.21 is: 323,576.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,452.05 : 587,149.79 = 234,465.21 : x
  2. Step 2: Convert to fraction form
    425,452.05/587,149.79 = 234,465.21/x
  3. Step 3: Cross multiply
    425,452.05x = 587,149.79 × 234,465.21
  4. Step 4: Simplify right side
    425,452.05x = 137,666,197,641.48
  5. Step 5: Solve for x
    x = 137,666,197,641.48/425,452.05
  6. Step 6: Final answer
    x = 323,576.29

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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.