Home / 639,928.44-883,082.52-353,442.24

Finding the Fourth Proportional to 639,928.44, 883,082.52 and 353,442.24

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Solution

The fourth proportional to 639,928.44, 883,082.52 and 353,442.24 is: 487,739.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,928.44 : 883,082.52 = 353,442.24 : x
  2. Step 2: Convert to fraction form
    639,928.44/883,082.52 = 353,442.24/x
  3. Step 3: Cross multiply
    639,928.44x = 883,082.52 × 353,442.24
  4. Step 4: Simplify right side
    639,928.44x = 312,118,663,973.65
  5. Step 5: Solve for x
    x = 312,118,663,973.65/639,928.44
  6. Step 6: Final answer
    x = 487,739.95

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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.