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Finding the Fourth Proportional to 539,452.32, 744,023.34 and 345,878.52

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Solution

The fourth proportional to 539,452.32, 744,023.34 and 345,878.52 is: 477,042.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,452.32 : 744,023.34 = 345,878.52 : x
  2. Step 2: Convert to fraction form
    539,452.32/744,023.34 = 345,878.52/x
  3. Step 3: Cross multiply
    539,452.32x = 744,023.34 × 345,878.52
  4. Step 4: Simplify right side
    539,452.32x = 257,341,691,684.66
  5. Step 5: Solve for x
    x = 257,341,691,684.66/539,452.32
  6. Step 6: Final answer
    x = 477,042.52

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1.5x scale

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.