Home / 423,116.20-634,703.10-123,596.20

Finding the Fourth Proportional to 423,116.20, 634,703.10 and 123,596.20

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Solution

The fourth proportional to 423,116.20, 634,703.10 and 123,596.20 is: 185,402.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,116.20 : 634,703.10 = 123,596.20 : x
  2. Step 2: Convert to fraction form
    423,116.20/634,703.10 = 123,596.20/x
  3. Step 3: Cross multiply
    423,116.20x = 634,703.10 × 123,596.20
  4. Step 4: Simplify right side
    423,116.20x = 78,446,891,288.22
  5. Step 5: Solve for x
    x = 78,446,891,288.22/423,116.20
  6. Step 6: Final answer
    x = 185,402.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.