Home / 819,542.72-1,226,995.85-434,414.04

Finding the Fourth Proportional to 819,542.72, 1,226,995.85 and 434,414.04

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Solution

The fourth proportional to 819,542.72, 1,226,995.85 and 434,414.04 is: 650,392.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,542.72 : 1,226,995.85 = 434,414.04 : x
  2. Step 2: Convert to fraction form
    819,542.72/1,226,995.85 = 434,414.04/x
  3. Step 3: Cross multiply
    819,542.72x = 1,226,995.85 × 434,414.04
  4. Step 4: Simplify right side
    819,542.72x = 533,024,222,089.66
  5. Step 5: Solve for x
    x = 533,024,222,089.66/819,542.72
  6. Step 6: Final answer
    x = 650,392.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.