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Finding the Fourth Proportional to 576,765.72, 865,169.36 and 216,903.59

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Solution

The fourth proportional to 576,765.72, 865,169.36 and 216,903.59 is: 325,363.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,765.72 : 865,169.36 = 216,903.59 : x
  2. Step 2: Convert to fraction form
    576,765.72/865,169.36 = 216,903.59/x
  3. Step 3: Cross multiply
    576,765.72x = 865,169.36 × 216,903.59
  4. Step 4: Simplify right side
    576,765.72x = 187,658,334,731.64
  5. Step 5: Solve for x
    x = 187,658,334,731.64/576,765.72
  6. Step 6: Final answer
    x = 325,363.19

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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.