Home / 1,211,760.80-1,817,833.20-413,117.60

Finding the Fourth Proportional to 1,211,760.80, 1,817,833.20 and 413,117.60

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Solution

The fourth proportional to 1,211,760.80, 1,817,833.20 and 413,117.60 is: 619,741.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,760.80 : 1,817,833.20 = 413,117.60 : x
  2. Step 2: Convert to fraction form
    1,211,760.80/1,817,833.20 = 413,117.60/x
  3. Step 3: Cross multiply
    1,211,760.80x = 1,817,833.20 × 413,117.60
  4. Step 4: Simplify right side
    1,211,760.80x = 750,978,888,784.32
  5. Step 5: Solve for x
    x = 750,978,888,784.32/1,211,760.80
  6. Step 6: Final answer
    x = 619,741.86

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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.