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Finding the Fourth Proportional to 542,219.67, 747,598.01 and 439,955.55

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Solution

The fourth proportional to 542,219.67, 747,598.01 and 439,955.55 is: 606,598.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,219.67 : 747,598.01 = 439,955.55 : x
  2. Step 2: Convert to fraction form
    542,219.67/747,598.01 = 439,955.55/x
  3. Step 3: Cross multiply
    542,219.67x = 747,598.01 × 439,955.55
  4. Step 4: Simplify right side
    542,219.67x = 328,909,891,468.68
  5. Step 5: Solve for x
    x = 328,909,891,468.68/542,219.67
  6. Step 6: Final answer
    x = 606,598.97

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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.