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Finding the Fourth Proportional to 549,374.22, 820,321.74 and 484,793.46

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Solution

The fourth proportional to 549,374.22, 820,321.74 and 484,793.46 is: 723,890.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,374.22 : 820,321.74 = 484,793.46 : x
  2. Step 2: Convert to fraction form
    549,374.22/820,321.74 = 484,793.46/x
  3. Step 3: Cross multiply
    549,374.22x = 820,321.74 × 484,793.46
  4. Step 4: Simplify right side
    549,374.22x = 397,686,614,647.82
  5. Step 5: Solve for x
    x = 397,686,614,647.82/549,374.22
  6. Step 6: Final answer
    x = 723,890.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.