Home / 687,003.40-1,027,589.10-616,436.20

Finding the Fourth Proportional to 687,003.40, 1,027,589.10 and 616,436.20

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Solution

The fourth proportional to 687,003.40, 1,027,589.10 and 616,436.20 is: 922,037.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,003.40 : 1,027,589.10 = 616,436.20 : x
  2. Step 2: Convert to fraction form
    687,003.40/1,027,589.10 = 616,436.20/x
  3. Step 3: Cross multiply
    687,003.40x = 1,027,589.10 × 616,436.20
  4. Step 4: Simplify right side
    687,003.40x = 633,443,119,965.42
  5. Step 5: Solve for x
    x = 633,443,119,965.42/687,003.40
  6. Step 6: Final answer
    x = 922,037.82

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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.