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Finding the Fourth Proportional to 424,713.33, 586,128.49 and 243,455.38

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Solution

The fourth proportional to 424,713.33, 586,128.49 and 243,455.38 is: 335,982.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,713.33 : 586,128.49 = 243,455.38 : x
  2. Step 2: Convert to fraction form
    424,713.33/586,128.49 = 243,455.38/x
  3. Step 3: Cross multiply
    424,713.33x = 586,128.49 × 243,455.38
  4. Step 4: Simplify right side
    424,713.33x = 142,696,132,187.82
  5. Step 5: Solve for x
    x = 142,696,132,187.82/424,713.33
  6. Step 6: Final answer
    x = 335,982.23

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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.