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Finding the Fourth Proportional to 556,418.20, 834,627.30 and 534,645.40

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Solution

The fourth proportional to 556,418.20, 834,627.30 and 534,645.40 is: 801,968.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,418.20 : 834,627.30 = 534,645.40 : x
  2. Step 2: Convert to fraction form
    556,418.20/834,627.30 = 534,645.40/x
  3. Step 3: Cross multiply
    556,418.20x = 834,627.30 × 534,645.40
  4. Step 4: Simplify right side
    556,418.20x = 446,229,646,659.42
  5. Step 5: Solve for x
    x = 446,229,646,659.42/556,418.20
  6. Step 6: Final answer
    x = 801,968.10

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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.