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Finding the Third Proportional to 399,154.50 and 602,862.75

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Solution

The third proportional to 399,154.50 and 602,862.75 is: 910,533.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,154.50 : 602,862.75 = 602,862.75 : x
  2. Step 2: Convert to fraction form
    399,154.50/602,862.75 = 602,862.75/x
  3. Step 3: Cross multiply
    399,154.50x = 602,862.75 × 602,862.75
  4. Step 4: Simplify right side
    399,154.50x = 363,443,495,337.56
  5. Step 5: Solve for x
    x = 363,443,495,337.56/399,154.50
  6. Step 6: Final answer
    x = 910,533.38

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.