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Finding the Fourth Proportional to 342,646.88, 473,067.14 and 220,188.92

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Solution

The fourth proportional to 342,646.88, 473,067.14 and 220,188.92 is: 303,998.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,646.88 : 473,067.14 = 220,188.92 : x
  2. Step 2: Convert to fraction form
    342,646.88/473,067.14 = 220,188.92/x
  3. Step 3: Cross multiply
    342,646.88x = 473,067.14 × 220,188.92
  4. Step 4: Simplify right side
    342,646.88x = 104,164,139,177.81
  5. Step 5: Solve for x
    x = 104,164,139,177.81/342,646.88
  6. Step 6: Final answer
    x = 303,998.51

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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.