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Finding the Fourth Proportional to 293,117.40, 404,503.74 and 165,785.40

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Solution

The fourth proportional to 293,117.40, 404,503.74 and 165,785.40 is: 228,784.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,117.40 : 404,503.74 = 165,785.40 : x
  2. Step 2: Convert to fraction form
    293,117.40/404,503.74 = 165,785.40/x
  3. Step 3: Cross multiply
    293,117.40x = 404,503.74 × 165,785.40
  4. Step 4: Simplify right side
    293,117.40x = 67,060,814,337.40
  5. Step 5: Solve for x
    x = 67,060,814,337.40/293,117.40
  6. Step 6: Final answer
    x = 228,784.83

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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.