Home / 828,687.28-1,144,231.92-647,084.32

Finding the Fourth Proportional to 828,687.28, 1,144,231.92 and 647,084.32

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Solution

The fourth proportional to 828,687.28, 1,144,231.92 and 647,084.32 is: 893,478.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,687.28 : 1,144,231.92 = 647,084.32 : x
  2. Step 2: Convert to fraction form
    828,687.28/1,144,231.92 = 647,084.32/x
  3. Step 3: Cross multiply
    828,687.28x = 1,144,231.92 × 647,084.32
  4. Step 4: Simplify right side
    828,687.28x = 740,414,533,875.49
  5. Step 5: Solve for x
    x = 740,414,533,875.49/828,687.28
  6. Step 6: Final answer
    x = 893,478.82

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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.