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Finding the Fourth Proportional to 574,570.92, 859,756.80 and 338,025

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Solution

The fourth proportional to 574,570.92, 859,756.80 and 338,025 is: 505,802.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,570.92 : 859,756.80 = 338,025 : x
  2. Step 2: Convert to fraction form
    574,570.92/859,756.80 = 338,025/x
  3. Step 3: Cross multiply
    574,570.92x = 859,756.80 × 338,025
  4. Step 4: Simplify right side
    574,570.92x = 290,619,292,320
  5. Step 5: Solve for x
    x = 290,619,292,320/574,570.92
  6. Step 6: Final answer
    x = 505,802.30

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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.