Home / 838,140.57-1,156,634.01-456,170.09

Finding the Fourth Proportional to 838,140.57, 1,156,634.01 and 456,170.09

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Solution

The fourth proportional to 838,140.57, 1,156,634.01 and 456,170.09 is: 629,514.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,140.57 : 1,156,634.01 = 456,170.09 : x
  2. Step 2: Convert to fraction form
    838,140.57/1,156,634.01 = 456,170.09/x
  3. Step 3: Cross multiply
    838,140.57x = 1,156,634.01 × 456,170.09
  4. Step 4: Simplify right side
    838,140.57x = 527,621,834,655.59
  5. Step 5: Solve for x
    x = 527,621,834,655.59/838,140.57
  6. Step 6: Final answer
    x = 629,514.73

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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.