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Finding the Fourth Proportional to 663,182.40, 993,607.20 and 544,209.60

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Solution

The fourth proportional to 663,182.40, 993,607.20 and 544,209.60 is: 815,357.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,182.40 : 993,607.20 = 544,209.60 : x
  2. Step 2: Convert to fraction form
    663,182.40/993,607.20 = 544,209.60/x
  3. Step 3: Cross multiply
    663,182.40x = 993,607.20 × 544,209.60
  4. Step 4: Simplify right side
    663,182.40x = 540,730,576,869.12
  5. Step 5: Solve for x
    x = 540,730,576,869.12/663,182.40
  6. Step 6: Final answer
    x = 815,357.25

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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.