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Finding the Fourth Proportional to 293,122.40, 404,510.64 and 165,790.40

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Solution

The fourth proportional to 293,122.40, 404,510.64 and 165,790.40 is: 228,791.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,122.40 : 404,510.64 = 165,790.40 : x
  2. Step 2: Convert to fraction form
    293,122.40/404,510.64 = 165,790.40/x
  3. Step 3: Cross multiply
    293,122.40x = 404,510.64 × 165,790.40
  4. Step 4: Simplify right side
    293,122.40x = 67,063,980,809.86
  5. Step 5: Solve for x
    x = 67,063,980,809.86/293,122.40
  6. Step 6: Final answer
    x = 228,791.73

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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.