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Finding the Fourth Proportional to 423,032.38, 634,655.49 and 195,218.26

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Solution

The fourth proportional to 423,032.38, 634,655.49 and 195,218.26 is: 292,876.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,032.38 : 634,655.49 = 195,218.26 : x
  2. Step 2: Convert to fraction form
    423,032.38/634,655.49 = 195,218.26/x
  3. Step 3: Cross multiply
    423,032.38x = 634,655.49 × 195,218.26
  4. Step 4: Simplify right side
    423,032.38x = 123,896,340,457.25
  5. Step 5: Solve for x
    x = 123,896,340,457.25/423,032.38
  6. Step 6: Final answer
    x = 292,876.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.