Home / 634,279.32-875,764.66-408,318.44

Finding the Fourth Proportional to 634,279.32, 875,764.66 and 408,318.44

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Solution

The fourth proportional to 634,279.32, 875,764.66 and 408,318.44 is: 563,775.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,279.32 : 875,764.66 = 408,318.44 : x
  2. Step 2: Convert to fraction form
    634,279.32/875,764.66 = 408,318.44/x
  3. Step 3: Cross multiply
    634,279.32x = 875,764.66 × 408,318.44
  4. Step 4: Simplify right side
    634,279.32x = 357,590,859,778.33
  5. Step 5: Solve for x
    x = 357,590,859,778.33/634,279.32
  6. Step 6: Final answer
    x = 563,775.06

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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.