Home / 283,791.04-391,624.14-156,463.36

Finding the Fourth Proportional to 283,791.04, 391,624.14 and 156,463.36

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Solution

The fourth proportional to 283,791.04, 391,624.14 and 156,463.36 is: 215,915.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,791.04 : 391,624.14 = 156,463.36 : x
  2. Step 2: Convert to fraction form
    283,791.04/391,624.14 = 156,463.36/x
  3. Step 3: Cross multiply
    283,791.04x = 391,624.14 × 156,463.36
  4. Step 4: Simplify right side
    283,791.04x = 61,274,828,801.51
  5. Step 5: Solve for x
    x = 61,274,828,801.51/283,791.04
  6. Step 6: Final answer
    x = 215,915.30

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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.