Home / 428,918.76-591,927.30-237,932.28

Finding the Fourth Proportional to 428,918.76, 591,927.30 and 237,932.28

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Solution

The fourth proportional to 428,918.76, 591,927.30 and 237,932.28 is: 328,357.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,918.76 : 591,927.30 = 237,932.28 : x
  2. Step 2: Convert to fraction form
    428,918.76/591,927.30 = 237,932.28/x
  3. Step 3: Cross multiply
    428,918.76x = 591,927.30 × 237,932.28
  4. Step 4: Simplify right side
    428,918.76x = 140,838,612,083.24
  5. Step 5: Solve for x
    x = 140,838,612,083.24/428,918.76
  6. Step 6: Final answer
    x = 328,357.31

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Double scale
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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.