Home / 998,800.20-1,499,266.46-430,461.77

Finding the Fourth Proportional to 998,800.20, 1,499,266.46 and 430,461.77

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Solution

The fourth proportional to 998,800.20, 1,499,266.46 and 430,461.77 is: 646,152.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,800.20 : 1,499,266.46 = 430,461.77 : x
  2. Step 2: Convert to fraction form
    998,800.20/1,499,266.46 = 430,461.77/x
  3. Step 3: Cross multiply
    998,800.20x = 1,499,266.46 × 430,461.77
  4. Step 4: Simplify right side
    998,800.20x = 645,376,891,920.93
  5. Step 5: Solve for x
    x = 645,376,891,920.93/998,800.20
  6. Step 6: Final answer
    x = 646,152.15

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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.