Home / 2,198,705.60-3,297,712.80-778,558.40

Finding the Fourth Proportional to 2,198,705.60, 3,297,712.80 and 778,558.40

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Solution

The fourth proportional to 2,198,705.60, 3,297,712.80 and 778,558.40 is: 1,167,715.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198,705.60 : 3,297,712.80 = 778,558.40 : x
  2. Step 2: Convert to fraction form
    2,198,705.60/3,297,712.80 = 778,558.40/x
  3. Step 3: Cross multiply
    2,198,705.60x = 3,297,712.80 × 778,558.40
  4. Step 4: Simplify right side
    2,198,705.60x = 2,567,462,001,227.52
  5. Step 5: Solve for x
    x = 2,567,462,001,227.52/2,198,705.60
  6. Step 6: Final answer
    x = 1,167,715.22

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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.