Home / 838,939.20-1,252,070.72-782,055.28

Finding the Fourth Proportional to 838,939.20, 1,252,070.72 and 782,055.28

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Solution

The fourth proportional to 838,939.20, 1,252,070.72 and 782,055.28 is: 1,167,174.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,939.20 : 1,252,070.72 = 782,055.28 : x
  2. Step 2: Convert to fraction form
    838,939.20/1,252,070.72 = 782,055.28/x
  3. Step 3: Cross multiply
    838,939.20x = 1,252,070.72 × 782,055.28
  4. Step 4: Simplify right side
    838,939.20x = 979,188,517,509.40
  5. Step 5: Solve for x
    x = 979,188,517,509.40/838,939.20
  6. Step 6: Final answer
    x = 1,167,174.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.