Home / 638,127.38-880,604.42-347,741.48

Finding the Fourth Proportional to 638,127.38, 880,604.42 and 347,741.48

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Solution

The fourth proportional to 638,127.38, 880,604.42 and 347,741.48 is: 479,877.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,127.38 : 880,604.42 = 347,741.48 : x
  2. Step 2: Convert to fraction form
    638,127.38/880,604.42 = 347,741.48/x
  3. Step 3: Cross multiply
    638,127.38x = 880,604.42 × 347,741.48
  4. Step 4: Simplify right side
    638,127.38x = 306,222,684,305.34
  5. Step 5: Solve for x
    x = 306,222,684,305.34/638,127.38
  6. Step 6: Final answer
    x = 479,877.05

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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.