Home / 428,984.32-591,990.76-237,994.44

Finding the Fourth Proportional to 428,984.32, 591,990.76 and 237,994.44

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Solution

The fourth proportional to 428,984.32, 591,990.76 and 237,994.44 is: 328,428.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,984.32 : 591,990.76 = 237,994.44 : x
  2. Step 2: Convert to fraction form
    428,984.32/591,990.76 = 237,994.44/x
  3. Step 3: Cross multiply
    428,984.32x = 591,990.76 × 237,994.44
  4. Step 4: Simplify right side
    428,984.32x = 140,890,509,411.37
  5. Step 5: Solve for x
    x = 140,890,509,411.37/428,984.32
  6. Step 6: Final answer
    x = 328,428.11

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Similar ratio
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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.