Home / 865,426.88-1,298,140.32-234,340.58

Finding the Fourth Proportional to 865,426.88, 1,298,140.32 and 234,340.58

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Solution

The fourth proportional to 865,426.88, 1,298,140.32 and 234,340.58 is: 351,510.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,426.88 : 1,298,140.32 = 234,340.58 : x
  2. Step 2: Convert to fraction form
    865,426.88/1,298,140.32 = 234,340.58/x
  3. Step 3: Cross multiply
    865,426.88x = 1,298,140.32 × 234,340.58
  4. Step 4: Simplify right side
    865,426.88x = 304,206,955,510.19
  5. Step 5: Solve for x
    x = 304,206,955,510.19/865,426.88
  6. Step 6: Final answer
    x = 351,510.87

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Double scale
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Similar ratio
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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.