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Finding the Fourth Proportional to 493,697.78, 681,302.77 and 267,343.22

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Solution

The fourth proportional to 493,697.78, 681,302.77 and 267,343.22 is: 368,933.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,697.78 : 681,302.77 = 267,343.22 : x
  2. Step 2: Convert to fraction form
    493,697.78/681,302.77 = 267,343.22/x
  3. Step 3: Cross multiply
    493,697.78x = 681,302.77 × 267,343.22
  4. Step 4: Simplify right side
    493,697.78x = 182,141,676,326.72
  5. Step 5: Solve for x
    x = 182,141,676,326.72/493,697.78
  6. Step 6: Final answer
    x = 368,933.55

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1.5x scale

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.