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Finding the Fourth Proportional to 576,880.61, 865,402.92 and 177,554.66

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Solution

The fourth proportional to 576,880.61, 865,402.92 and 177,554.66 is: 266,357.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,880.61 : 865,402.92 = 177,554.66 : x
  2. Step 2: Convert to fraction form
    576,880.61/865,402.92 = 177,554.66/x
  3. Step 3: Cross multiply
    576,880.61x = 865,402.92 × 177,554.66
  4. Step 4: Simplify right side
    576,880.61x = 153,656,316,896.59
  5. Step 5: Solve for x
    x = 153,656,316,896.59/576,880.61
  6. Step 6: Final answer
    x = 266,357.22

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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.