Home / 838,611.52-1,157,252.31-512,469.88

Finding the Fourth Proportional to 838,611.52, 1,157,252.31 and 512,469.88

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Solution

The fourth proportional to 838,611.52, 1,157,252.31 and 512,469.88 is: 707,189.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,611.52 : 1,157,252.31 = 512,469.88 : x
  2. Step 2: Convert to fraction form
    838,611.52/1,157,252.31 = 512,469.88/x
  3. Step 3: Cross multiply
    838,611.52x = 1,157,252.31 × 512,469.88
  4. Step 4: Simplify right side
    838,611.52x = 593,056,949,542.29
  5. Step 5: Solve for x
    x = 593,056,949,542.29/838,611.52
  6. Step 6: Final answer
    x = 707,189.13

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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.