Home / 639,523.43-882,545.15-353,045.87

Finding the Fourth Proportional to 639,523.43, 882,545.15 and 353,045.87

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Solution

The fourth proportional to 639,523.43, 882,545.15 and 353,045.87 is: 487,204.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,523.43 : 882,545.15 = 353,045.87 : x
  2. Step 2: Convert to fraction form
    639,523.43/882,545.15 = 353,045.87/x
  3. Step 3: Cross multiply
    639,523.43x = 882,545.15 × 353,045.87
  4. Step 4: Simplify right side
    639,523.43x = 311,578,920,296.03
  5. Step 5: Solve for x
    x = 311,578,920,296.03/639,523.43
  6. Step 6: Final answer
    x = 487,204.86

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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.