Home / 769,687.80-1,062,170.73-430,156.05

Finding the Fourth Proportional to 769,687.80, 1,062,170.73 and 430,156.05

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Solution

The fourth proportional to 769,687.80, 1,062,170.73 and 430,156.05 is: 593,616.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,687.80 : 1,062,170.73 = 430,156.05 : x
  2. Step 2: Convert to fraction form
    769,687.80/1,062,170.73 = 430,156.05/x
  3. Step 3: Cross multiply
    769,687.80x = 1,062,170.73 × 430,156.05
  4. Step 4: Simplify right side
    769,687.80x = 456,899,165,642.42
  5. Step 5: Solve for x
    x = 456,899,165,642.42/769,687.80
  6. Step 6: Final answer
    x = 593,616.22

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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.