Home / 438,428.70-657,643.05-157,844.70

Finding the Fourth Proportional to 438,428.70, 657,643.05 and 157,844.70

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Solution

The fourth proportional to 438,428.70, 657,643.05 and 157,844.70 is: 236,767.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,428.70 : 657,643.05 = 157,844.70 : x
  2. Step 2: Convert to fraction form
    438,428.70/657,643.05 = 157,844.70/x
  3. Step 3: Cross multiply
    438,428.70x = 657,643.05 × 157,844.70
  4. Step 4: Simplify right side
    438,428.70x = 103,805,469,934.34
  5. Step 5: Solve for x
    x = 103,805,469,934.34/438,428.70
  6. Step 6: Final answer
    x = 236,767.05

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Similar ratio
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1.5x scale

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.