Home / 991,553.30-1,487,462.35-392,374.33

Finding the Fourth Proportional to 991,553.30, 1,487,462.35 and 392,374.33

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Solution

The fourth proportional to 991,553.30, 1,487,462.35 and 392,374.33 is: 588,613.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,553.30 : 1,487,462.35 = 392,374.33 : x
  2. Step 2: Convert to fraction form
    991,553.30/1,487,462.35 = 392,374.33/x
  3. Step 3: Cross multiply
    991,553.30x = 1,487,462.35 × 392,374.33
  4. Step 4: Simplify right side
    991,553.30x = 583,642,049,785.63
  5. Step 5: Solve for x
    x = 583,642,049,785.63/991,553.30
  6. Step 6: Final answer
    x = 588,613.89

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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.