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Finding the Fourth Proportional to 575,125.20, 862,039.80 and 275,749.20

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Solution

The fourth proportional to 575,125.20, 862,039.80 and 275,749.20 is: 413,313.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,125.20 : 862,039.80 = 275,749.20 : x
  2. Step 2: Convert to fraction form
    575,125.20/862,039.80 = 275,749.20/x
  3. Step 3: Cross multiply
    575,125.20x = 862,039.80 × 275,749.20
  4. Step 4: Simplify right side
    575,125.20x = 237,706,785,218.16
  5. Step 5: Solve for x
    x = 237,706,785,218.16/575,125.20
  6. Step 6: Final answer
    x = 413,313.11

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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.