Home / 998,853.66-1,378,416.16-539,968.50

Finding the Fourth Proportional to 998,853.66, 1,378,416.16 and 539,968.50

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Solution

The fourth proportional to 998,853.66, 1,378,416.16 and 539,968.50 is: 745,155.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,853.66 : 1,378,416.16 = 539,968.50 : x
  2. Step 2: Convert to fraction form
    998,853.66/1,378,416.16 = 539,968.50/x
  3. Step 3: Cross multiply
    998,853.66x = 1,378,416.16 × 539,968.50
  4. Step 4: Simplify right side
    998,853.66x = 744,301,306,290.96
  5. Step 5: Solve for x
    x = 744,301,306,290.96/998,853.66
  6. Step 6: Final answer
    x = 745,155.51

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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.