Home / 678,339.60-1,017,531.06-341,196.13

Finding the Fourth Proportional to 678,339.60, 1,017,531.06 and 341,196.13

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Solution

The fourth proportional to 678,339.60, 1,017,531.06 and 341,196.13 is: 511,805.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,339.60 : 1,017,531.06 = 341,196.13 : x
  2. Step 2: Convert to fraction form
    678,339.60/1,017,531.06 = 341,196.13/x
  3. Step 3: Cross multiply
    678,339.60x = 1,017,531.06 × 341,196.13
  4. Step 4: Simplify right side
    678,339.60x = 347,177,659,826.80
  5. Step 5: Solve for x
    x = 347,177,659,826.80/678,339.60
  6. Step 6: Final answer
    x = 511,805.09

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Double scale
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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.