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Finding the Fourth Proportional to 519,215.89, 716,551.37 and 292,856.53

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Solution

The fourth proportional to 519,215.89, 716,551.37 and 292,856.53 is: 404,160.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,215.89 : 716,551.37 = 292,856.53 : x
  2. Step 2: Convert to fraction form
    519,215.89/716,551.37 = 292,856.53/x
  3. Step 3: Cross multiply
    519,215.89x = 716,551.37 × 292,856.53
  4. Step 4: Simplify right side
    519,215.89x = 209,846,746,320.66
  5. Step 5: Solve for x
    x = 209,846,746,320.66/519,215.89
  6. Step 6: Final answer
    x = 404,160.87

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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.