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Finding the Fourth Proportional to 519,301.80, 716,639.40 and 292,961.88

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Solution

The fourth proportional to 519,301.80, 716,639.40 and 292,961.88 is: 404,289.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,301.80 : 716,639.40 = 292,961.88 : x
  2. Step 2: Convert to fraction form
    519,301.80/716,639.40 = 292,961.88/x
  3. Step 3: Cross multiply
    519,301.80x = 716,639.40 × 292,961.88
  4. Step 4: Simplify right side
    519,301.80x = 209,948,025,906.07
  5. Step 5: Solve for x
    x = 209,948,025,906.07/519,301.80
  6. Step 6: Final answer
    x = 404,289.04

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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.