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Finding the Fourth Proportional to 425,162.40, 586,765.58 and 317,545.68

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Solution

The fourth proportional to 425,162.40, 586,765.58 and 317,545.68 is: 438,244.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,162.40 : 586,765.58 = 317,545.68 : x
  2. Step 2: Convert to fraction form
    425,162.40/586,765.58 = 317,545.68/x
  3. Step 3: Cross multiply
    425,162.40x = 586,765.58 × 317,545.68
  4. Step 4: Simplify right side
    425,162.40x = 186,324,875,101.69
  5. Step 5: Solve for x
    x = 186,324,875,101.69/425,162.40
  6. Step 6: Final answer
    x = 438,244.01

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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.