Home / 854,218.16-1,179,117.90-491,786.46

Finding the Fourth Proportional to 854,218.16, 1,179,117.90 and 491,786.46

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Solution

The fourth proportional to 854,218.16, 1,179,117.90 and 491,786.46 is: 678,836.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,218.16 : 1,179,117.90 = 491,786.46 : x
  2. Step 2: Convert to fraction form
    854,218.16/1,179,117.90 = 491,786.46/x
  3. Step 3: Cross multiply
    854,218.16x = 1,179,117.90 × 491,786.46
  4. Step 4: Simplify right side
    854,218.16x = 579,874,217,963.63
  5. Step 5: Solve for x
    x = 579,874,217,963.63/854,218.16
  6. Step 6: Final answer
    x = 678,836.21

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Double scale
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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.