Home / 638,235.72-880,799.94-366,301.44

Finding the Fourth Proportional to 638,235.72, 880,799.94 and 366,301.44

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Solution

The fourth proportional to 638,235.72, 880,799.94 and 366,301.44 is: 505,515.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,235.72 : 880,799.94 = 366,301.44 : x
  2. Step 2: Convert to fraction form
    638,235.72/880,799.94 = 366,301.44/x
  3. Step 3: Cross multiply
    638,235.72x = 880,799.94 × 366,301.44
  4. Step 4: Simplify right side
    638,235.72x = 322,638,286,373.91
  5. Step 5: Solve for x
    x = 322,638,286,373.91/638,235.72
  6. Step 6: Final answer
    x = 505,515.87

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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.