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Finding the Fourth Proportional to 364,085.20, 547,294.20 and 259,627.60

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Solution

The fourth proportional to 364,085.20, 547,294.20 and 259,627.60 is: 390,273.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,085.20 : 547,294.20 = 259,627.60 : x
  2. Step 2: Convert to fraction form
    364,085.20/547,294.20 = 259,627.60/x
  3. Step 3: Cross multiply
    364,085.20x = 547,294.20 × 259,627.60
  4. Step 4: Simplify right side
    364,085.20x = 142,092,679,639.92
  5. Step 5: Solve for x
    x = 142,092,679,639.92/364,085.20
  6. Step 6: Final answer
    x = 390,273.15

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1.5x scale

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.