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Finding the Fourth Proportional to 424,993.18, 586,491.97 and 231,403.18

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Solution

The fourth proportional to 424,993.18, 586,491.97 and 231,403.18 is: 319,337.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,993.18 : 586,491.97 = 231,403.18 : x
  2. Step 2: Convert to fraction form
    424,993.18/586,491.97 = 231,403.18/x
  3. Step 3: Cross multiply
    424,993.18x = 586,491.97 × 231,403.18
  4. Step 4: Simplify right side
    424,993.18x = 135,716,103,970.01
  5. Step 5: Solve for x
    x = 135,716,103,970.01/424,993.18
  6. Step 6: Final answer
    x = 319,337.14

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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.