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Finding the Fourth Proportional to 549,872.80, 824,809.20 and 541,015.45

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Solution

The fourth proportional to 549,872.80, 824,809.20 and 541,015.45 is: 811,523.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,872.80 : 824,809.20 = 541,015.45 : x
  2. Step 2: Convert to fraction form
    549,872.80/824,809.20 = 541,015.45/x
  3. Step 3: Cross multiply
    549,872.80x = 824,809.20 × 541,015.45
  4. Step 4: Simplify right side
    549,872.80x = 446,234,520,502.14
  5. Step 5: Solve for x
    x = 446,234,520,502.14/549,872.80
  6. Step 6: Final answer
    x = 811,523.18

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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.