Home / 678,561.60-1,017,194.40-251,983.20

Finding the Fourth Proportional to 678,561.60, 1,017,194.40 and 251,983.20

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Solution

The fourth proportional to 678,561.60, 1,017,194.40 and 251,983.20 is: 377,734.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,561.60 : 1,017,194.40 = 251,983.20 : x
  2. Step 2: Convert to fraction form
    678,561.60/1,017,194.40 = 251,983.20/x
  3. Step 3: Cross multiply
    678,561.60x = 1,017,194.40 × 251,983.20
  4. Step 4: Simplify right side
    678,561.60x = 256,315,899,934.08
  5. Step 5: Solve for x
    x = 256,315,899,934.08/678,561.60
  6. Step 6: Final answer
    x = 377,734.17

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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.