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Finding the Fourth Proportional to 551,076.20, 826,614.30 and 545,827.40

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Solution

The fourth proportional to 551,076.20, 826,614.30 and 545,827.40 is: 818,741.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,076.20 : 826,614.30 = 545,827.40 : x
  2. Step 2: Convert to fraction form
    551,076.20/826,614.30 = 545,827.40/x
  3. Step 3: Cross multiply
    551,076.20x = 826,614.30 × 545,827.40
  4. Step 4: Simplify right side
    551,076.20x = 451,188,734,171.82
  5. Step 5: Solve for x
    x = 451,188,734,171.82/551,076.20
  6. Step 6: Final answer
    x = 818,741.10

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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.