Home / 419,120.60-578,370.33-237,821.72

Finding the Fourth Proportional to 419,120.60, 578,370.33 and 237,821.72

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Solution

The fourth proportional to 419,120.60, 578,370.33 and 237,821.72 is: 328,184.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,120.60 : 578,370.33 = 237,821.72 : x
  2. Step 2: Convert to fraction form
    419,120.60/578,370.33 = 237,821.72/x
  3. Step 3: Cross multiply
    419,120.60x = 578,370.33 × 237,821.72
  4. Step 4: Simplify right side
    419,120.60x = 137,549,023,785.72
  5. Step 5: Solve for x
    x = 137,549,023,785.72/419,120.60
  6. Step 6: Final answer
    x = 328,184.84

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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.