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Finding the Fourth Proportional to 488,934.81, 674,798.96 and 271,191.91

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Solution

The fourth proportional to 488,934.81, 674,798.96 and 271,191.91 is: 374,283.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,934.81 : 674,798.96 = 271,191.91 : x
  2. Step 2: Convert to fraction form
    488,934.81/674,798.96 = 271,191.91/x
  3. Step 3: Cross multiply
    488,934.81x = 674,798.96 × 271,191.91
  4. Step 4: Simplify right side
    488,934.81x = 183,000,018,315.95
  5. Step 5: Solve for x
    x = 183,000,018,315.95/488,934.81
  6. Step 6: Final answer
    x = 374,283.06

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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.