Home / 935,385-1,291,182.30-613,115.88

Finding the Fourth Proportional to 935,385, 1,291,182.30 and 613,115.88

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Solution

The fourth proportional to 935,385, 1,291,182.30 and 613,115.88 is: 846,329.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,385 : 1,291,182.30 = 613,115.88 : x
  2. Step 2: Convert to fraction form
    935,385/1,291,182.30 = 613,115.88/x
  3. Step 3: Cross multiply
    935,385x = 1,291,182.30 × 613,115.88
  4. Step 4: Simplify right side
    935,385x = 791,644,372,104.92
  5. Step 5: Solve for x
    x = 791,644,372,104.92/935,385
  6. Step 6: Final answer
    x = 846,329.98

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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.