Home / 1,439,691.76-1,986,790.44-828,148.24

Finding the Fourth Proportional to 1,439,691.76, 1,986,790.44 and 828,148.24

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Solution

The fourth proportional to 1,439,691.76, 1,986,790.44 and 828,148.24 is: 1,142,853.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,691.76 : 1,986,790.44 = 828,148.24 : x
  2. Step 2: Convert to fraction form
    1,439,691.76/1,986,790.44 = 828,148.24/x
  3. Step 3: Cross multiply
    1,439,691.76x = 1,986,790.44 × 828,148.24
  4. Step 4: Simplify right side
    1,439,691.76x = 1,645,357,006,134.83
  5. Step 5: Solve for x
    x = 1,645,357,006,134.83/1,439,691.76
  6. Step 6: Final answer
    x = 1,142,853.67

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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.