Home / 819,818.10-1,229,143.95-314,183.70

Finding the Fourth Proportional to 819,818.10, 1,229,143.95 and 314,183.70

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Solution

The fourth proportional to 819,818.10, 1,229,143.95 and 314,183.70 is: 471,052.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,818.10 : 1,229,143.95 = 314,183.70 : x
  2. Step 2: Convert to fraction form
    819,818.10/1,229,143.95 = 314,183.70/x
  3. Step 3: Cross multiply
    819,818.10x = 1,229,143.95 × 314,183.70
  4. Step 4: Simplify right side
    819,818.10x = 386,176,994,043.62
  5. Step 5: Solve for x
    x = 386,176,994,043.62/819,818.10
  6. Step 6: Final answer
    x = 471,052.05

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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.