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Finding the Fourth Proportional to 576,618.45, 865,010.34 and 177,292.76

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Solution

The fourth proportional to 576,618.45, 865,010.34 and 177,292.76 is: 265,964.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,618.45 : 865,010.34 = 177,292.76 : x
  2. Step 2: Convert to fraction form
    576,618.45/865,010.34 = 177,292.76/x
  3. Step 3: Cross multiply
    576,618.45x = 865,010.34 × 177,292.76
  4. Step 4: Simplify right side
    576,618.45x = 153,360,066,282.09
  5. Step 5: Solve for x
    x = 153,360,066,282.09/576,618.45
  6. Step 6: Final answer
    x = 265,964.55

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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.