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Finding the Fourth Proportional to 574,121.20, 859,140.60 and 500,054.80

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Solution

The fourth proportional to 574,121.20, 859,140.60 and 500,054.80 is: 748,304.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,121.20 : 859,140.60 = 500,054.80 : x
  2. Step 2: Convert to fraction form
    574,121.20/859,140.60 = 500,054.80/x
  3. Step 3: Cross multiply
    574,121.20x = 859,140.60 × 500,054.80
  4. Step 4: Simplify right side
    574,121.20x = 429,617,380,904.88
  5. Step 5: Solve for x
    x = 429,617,380,904.88/574,121.20
  6. Step 6: Final answer
    x = 748,304.33

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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.