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Finding the Fourth Proportional to 572,116.60, 858,174.90 and 545,872.60

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Solution

The fourth proportional to 572,116.60, 858,174.90 and 545,872.60 is: 818,808.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,116.60 : 858,174.90 = 545,872.60 : x
  2. Step 2: Convert to fraction form
    572,116.60/858,174.90 = 545,872.60/x
  3. Step 3: Cross multiply
    572,116.60x = 858,174.90 × 545,872.60
  4. Step 4: Simplify right side
    572,116.60x = 468,454,163,917.74
  5. Step 5: Solve for x
    x = 468,454,163,917.74/572,116.60
  6. Step 6: Final answer
    x = 818,808.90

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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.