Home / 320,545.20-442,213.38-193,148.40

Finding the Fourth Proportional to 320,545.20, 442,213.38 and 193,148.40

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Solution

The fourth proportional to 320,545.20, 442,213.38 and 193,148.40 is: 266,461.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,545.20 : 442,213.38 = 193,148.40 : x
  2. Step 2: Convert to fraction form
    320,545.20/442,213.38 = 193,148.40/x
  3. Step 3: Cross multiply
    320,545.20x = 442,213.38 × 193,148.40
  4. Step 4: Simplify right side
    320,545.20x = 85,412,806,805.59
  5. Step 5: Solve for x
    x = 85,412,806,805.59/320,545.20
  6. Step 6: Final answer
    x = 266,461.04

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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.