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Finding the Fourth Proportional to 574,145.20, 859,176.60 and 500,078.80

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Solution

The fourth proportional to 574,145.20, 859,176.60 and 500,078.80 is: 748,340.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,145.20 : 859,176.60 = 500,078.80 : x
  2. Step 2: Convert to fraction form
    574,145.20/859,176.60 = 500,078.80/x
  3. Step 3: Cross multiply
    574,145.20x = 859,176.60 × 500,078.80
  4. Step 4: Simplify right side
    574,145.20x = 429,656,003,116.08
  5. Step 5: Solve for x
    x = 429,656,003,116.08/574,145.20
  6. Step 6: Final answer
    x = 748,340.32

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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.