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Finding the Fourth Proportional to 488,712.84, 674,422.82 and 297,726.24

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Solution

The fourth proportional to 488,712.84, 674,422.82 and 297,726.24 is: 410,861.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,712.84 : 674,422.82 = 297,726.24 : x
  2. Step 2: Convert to fraction form
    488,712.84/674,422.82 = 297,726.24/x
  3. Step 3: Cross multiply
    488,712.84x = 674,422.82 × 297,726.24
  4. Step 4: Simplify right side
    488,712.84x = 200,793,370,368.80
  5. Step 5: Solve for x
    x = 200,793,370,368.80/488,712.84
  6. Step 6: Final answer
    x = 410,861.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.