Home / 998,499.40-1,497,749.10-620,585.80

Finding the Fourth Proportional to 998,499.40, 1,497,749.10 and 620,585.80

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Solution

The fourth proportional to 998,499.40, 1,497,749.10 and 620,585.80 is: 930,878.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,499.40 : 1,497,749.10 = 620,585.80 : x
  2. Step 2: Convert to fraction form
    998,499.40/1,497,749.10 = 620,585.80/x
  3. Step 3: Cross multiply
    998,499.40x = 1,497,749.10 × 620,585.80
  4. Step 4: Simplify right side
    998,499.40x = 929,481,823,422.78
  5. Step 5: Solve for x
    x = 929,481,823,422.78/998,499.40
  6. Step 6: Final answer
    x = 930,878.70

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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.