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Finding the Fourth Proportional to 548,218.60, 822,327.90 and 527,223.40

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Solution

The fourth proportional to 548,218.60, 822,327.90 and 527,223.40 is: 790,835.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,218.60 : 822,327.90 = 527,223.40 : x
  2. Step 2: Convert to fraction form
    548,218.60/822,327.90 = 527,223.40/x
  3. Step 3: Cross multiply
    548,218.60x = 822,327.90 × 527,223.40
  4. Step 4: Simplify right side
    548,218.60x = 433,550,511,352.86
  5. Step 5: Solve for x
    x = 433,550,511,352.86/548,218.60
  6. Step 6: Final answer
    x = 790,835.10

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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.