Home / 1,407,793.60-2,111,690.40-661,297.60

Finding the Fourth Proportional to 1,407,793.60, 2,111,690.40 and 661,297.60

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Solution

The fourth proportional to 1,407,793.60, 2,111,690.40 and 661,297.60 is: 991,946.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,793.60 : 2,111,690.40 = 661,297.60 : x
  2. Step 2: Convert to fraction form
    1,407,793.60/2,111,690.40 = 661,297.60/x
  3. Step 3: Cross multiply
    1,407,793.60x = 2,111,690.40 × 661,297.60
  4. Step 4: Simplify right side
    1,407,793.60x = 1,396,455,793,463.04
  5. Step 5: Solve for x
    x = 1,396,455,793,463.04/1,407,793.60
  6. Step 6: Final answer
    x = 991,946.40

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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.