Home / 438,376.10-657,601.39-154,042.05

Finding the Fourth Proportional to 438,376.10, 657,601.39 and 154,042.05

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Solution

The fourth proportional to 438,376.10, 657,601.39 and 154,042.05 is: 231,076.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,376.10 : 657,601.39 = 154,042.05 : x
  2. Step 2: Convert to fraction form
    438,376.10/657,601.39 = 154,042.05/x
  3. Step 3: Cross multiply
    438,376.10x = 657,601.39 × 154,042.05
  4. Step 4: Simplify right side
    438,376.10x = 101,298,267,990.52
  5. Step 5: Solve for x
    x = 101,298,267,990.52/438,376.10
  6. Step 6: Final answer
    x = 231,076.16

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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.