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Finding the Fourth Proportional to 546,446.80, 819,670.20 and 542,947.60

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Solution

The fourth proportional to 546,446.80, 819,670.20 and 542,947.60 is: 814,421.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,446.80 : 819,670.20 = 542,947.60 : x
  2. Step 2: Convert to fraction form
    546,446.80/819,670.20 = 542,947.60/x
  3. Step 3: Cross multiply
    546,446.80x = 819,670.20 × 542,947.60
  4. Step 4: Simplify right side
    546,446.80x = 445,037,967,881.52
  5. Step 5: Solve for x
    x = 445,037,967,881.52/546,446.80
  6. Step 6: Final answer
    x = 814,421.40

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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.