Home / 460,510.32-690,731.76-145,057.44

Finding the Fourth Proportional to 460,510.32, 690,731.76 and 145,057.44

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Solution

The fourth proportional to 460,510.32, 690,731.76 and 145,057.44 is: 217,575.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,510.32 : 690,731.76 = 145,057.44 : x
  2. Step 2: Convert to fraction form
    460,510.32/690,731.76 = 145,057.44/x
  3. Step 3: Cross multiply
    460,510.32x = 690,731.76 × 145,057.44
  4. Step 4: Simplify right side
    460,510.32x = 100,195,780,832.29
  5. Step 5: Solve for x
    x = 100,195,780,832.29/460,510.32
  6. Step 6: Final answer
    x = 217,575.54

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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.