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Finding the Fourth Proportional to 576,978.32, 865,549.38 and 177,652.28

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Solution

The fourth proportional to 576,978.32, 865,549.38 and 177,652.28 is: 266,503.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,978.32 : 865,549.38 = 177,652.28 : x
  2. Step 2: Convert to fraction form
    576,978.32/865,549.38 = 177,652.28/x
  3. Step 3: Cross multiply
    576,978.32x = 865,549.38 × 177,652.28
  4. Step 4: Simplify right side
    576,978.32x = 153,766,820,809.59
  5. Step 5: Solve for x
    x = 153,766,820,809.59/576,978.32
  6. Step 6: Final answer
    x = 266,503.64

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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.