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Finding the Fourth Proportional to 418,773.55, 578,010.14 and 237,591.53

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Solution

The fourth proportional to 418,773.55, 578,010.14 and 237,591.53 is: 327,934.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,773.55 : 578,010.14 = 237,591.53 : x
  2. Step 2: Convert to fraction form
    418,773.55/578,010.14 = 237,591.53/x
  3. Step 3: Cross multiply
    418,773.55x = 578,010.14 × 237,591.53
  4. Step 4: Simplify right side
    418,773.55x = 137,330,315,557.12
  5. Step 5: Solve for x
    x = 137,330,315,557.12/418,773.55
  6. Step 6: Final answer
    x = 327,934.55

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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.