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Finding the Fourth Proportional to 674,077.76, 930,180.48 and 372,248

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Solution

The fourth proportional to 674,077.76, 930,180.48 and 372,248 is: 513,676.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,077.76 : 930,180.48 = 372,248 : x
  2. Step 2: Convert to fraction form
    674,077.76/930,180.48 = 372,248/x
  3. Step 3: Cross multiply
    674,077.76x = 930,180.48 × 372,248
  4. Step 4: Simplify right side
    674,077.76x = 346,257,823,319.04
  5. Step 5: Solve for x
    x = 346,257,823,319.04/674,077.76
  6. Step 6: Final answer
    x = 513,676.38

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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.