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Finding the Fourth Proportional to 576,203.65, 864,305.48 and 155,478.85

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Solution

The fourth proportional to 576,203.65, 864,305.48 and 155,478.85 is: 233,218.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,203.65 : 864,305.48 = 155,478.85 : x
  2. Step 2: Convert to fraction form
    576,203.65/864,305.48 = 155,478.85/x
  3. Step 3: Cross multiply
    576,203.65x = 864,305.48 × 155,478.85
  4. Step 4: Simplify right side
    576,203.65x = 134,381,221,301.70
  5. Step 5: Solve for x
    x = 134,381,221,301.70/576,203.65
  6. Step 6: Final answer
    x = 233,218.28

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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.