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Finding the Fourth Proportional to 354,031.83, 488,561.22 and 192,886.38

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Solution

The fourth proportional to 354,031.83, 488,561.22 and 192,886.38 is: 266,181.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,031.83 : 488,561.22 = 192,886.38 : x
  2. Step 2: Convert to fraction form
    354,031.83/488,561.22 = 192,886.38/x
  3. Step 3: Cross multiply
    354,031.83x = 488,561.22 × 192,886.38
  4. Step 4: Simplify right side
    354,031.83x = 94,236,805,134.18
  5. Step 5: Solve for x
    x = 94,236,805,134.18/354,031.83
  6. Step 6: Final answer
    x = 266,181.73

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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.