Home / 838,144.80-1,156,639.83-456,174.36

Finding the Fourth Proportional to 838,144.80, 1,156,639.83 and 456,174.36

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Solution

The fourth proportional to 838,144.80, 1,156,639.83 and 456,174.36 is: 629,520.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,144.80 : 1,156,639.83 = 456,174.36 : x
  2. Step 2: Convert to fraction form
    838,144.80/1,156,639.83 = 456,174.36/x
  3. Step 3: Cross multiply
    838,144.80x = 1,156,639.83 × 456,174.36
  4. Step 4: Simplify right side
    838,144.80x = 527,629,434,200.76
  5. Step 5: Solve for x
    x = 527,629,434,200.76/838,144.80
  6. Step 6: Final answer
    x = 629,520.62

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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.