Home / 865,951.20-1,298,696.40-266,911.20

Finding the Fourth Proportional to 865,951.20, 1,298,696.40 and 266,911.20

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Solution

The fourth proportional to 865,951.20, 1,298,696.40 and 266,911.20 is: 400,295.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,951.20 : 1,298,696.40 = 266,911.20 : x
  2. Step 2: Convert to fraction form
    865,951.20/1,298,696.40 = 266,911.20/x
  3. Step 3: Cross multiply
    865,951.20x = 1,298,696.40 × 266,911.20
  4. Step 4: Simplify right side
    865,951.20x = 346,636,614,559.68
  5. Step 5: Solve for x
    x = 346,636,614,559.68/865,951.20
  6. Step 6: Final answer
    x = 400,295.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.