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Finding the Fourth Proportional to 488,925.33, 674,758.56 and 274,106.91

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Solution

The fourth proportional to 488,925.33, 674,758.56 and 274,106.91 is: 378,290.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,925.33 : 674,758.56 = 274,106.91 : x
  2. Step 2: Convert to fraction form
    488,925.33/674,758.56 = 274,106.91/x
  3. Step 3: Cross multiply
    488,925.33x = 674,758.56 × 274,106.91
  4. Step 4: Simplify right side
    488,925.33x = 184,955,983,877.65
  5. Step 5: Solve for x
    x = 184,955,983,877.65/488,925.33
  6. Step 6: Final answer
    x = 378,290.86

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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.