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Finding the Fourth Proportional to 519,232.78, 716,540.07 and 292,876.66

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Solution

The fourth proportional to 519,232.78, 716,540.07 and 292,876.66 is: 404,169.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,232.78 : 716,540.07 = 292,876.66 : x
  2. Step 2: Convert to fraction form
    519,232.78/716,540.07 = 292,876.66/x
  3. Step 3: Cross multiply
    519,232.78x = 716,540.07 × 292,876.66
  4. Step 4: Simplify right side
    519,232.78x = 209,857,862,457.77
  5. Step 5: Solve for x
    x = 209,857,862,457.77/519,232.78
  6. Step 6: Final answer
    x = 404,169.13

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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.