Home / 639,542.45-882,545.45-353,056.39

Finding the Fourth Proportional to 639,542.45, 882,545.45 and 353,056.39

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Solution

The fourth proportional to 639,542.45, 882,545.45 and 353,056.39 is: 487,205.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,542.45 : 882,545.45 = 353,056.39 : x
  2. Step 2: Convert to fraction form
    639,542.45/882,545.45 = 353,056.39/x
  3. Step 3: Cross multiply
    639,542.45x = 882,545.45 × 353,056.39
  4. Step 4: Simplify right side
    639,542.45x = 311,588,304,409.92
  5. Step 5: Solve for x
    x = 311,588,304,409.92/639,542.45
  6. Step 6: Final answer
    x = 487,205.04

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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.