Home / 1,447,998.40-2,171,997.60-917,869.60

Finding the Fourth Proportional to 1,447,998.40, 2,171,997.60 and 917,869.60

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Solution

The fourth proportional to 1,447,998.40, 2,171,997.60 and 917,869.60 is: 1,376,804.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447,998.40 : 2,171,997.60 = 917,869.60 : x
  2. Step 2: Convert to fraction form
    1,447,998.40/2,171,997.60 = 917,869.60/x
  3. Step 3: Cross multiply
    1,447,998.40x = 2,171,997.60 × 917,869.60
  4. Step 4: Simplify right side
    1,447,998.40x = 1,993,610,568,312.96
  5. Step 5: Solve for x
    x = 1,993,610,568,312.96/1,447,998.40
  6. Step 6: Final answer
    x = 1,376,804.40

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Similar ratio
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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.