Home / 998,840.52-1,378,085.85-611,251.88

Finding the Fourth Proportional to 998,840.52, 1,378,085.85 and 611,251.88

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Solution

The fourth proportional to 998,840.52, 1,378,085.85 and 611,251.88 is: 843,335.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,840.52 : 1,378,085.85 = 611,251.88 : x
  2. Step 2: Convert to fraction form
    998,840.52/1,378,085.85 = 611,251.88/x
  3. Step 3: Cross multiply
    998,840.52x = 1,378,085.85 × 611,251.88
  4. Step 4: Simplify right side
    998,840.52x = 842,357,559,723.47
  5. Step 5: Solve for x
    x = 842,357,559,723.47/998,840.52
  6. Step 6: Final answer
    x = 843,335.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.