Home / 1,288,665.34-1,778,254.12-744,836.35

Finding the Fourth Proportional to 1,288,665.34, 1,778,254.12 and 744,836.35

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Solution

The fourth proportional to 1,288,665.34, 1,778,254.12 and 744,836.35 is: 1,027,814.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,665.34 : 1,778,254.12 = 744,836.35 : x
  2. Step 2: Convert to fraction form
    1,288,665.34/1,778,254.12 = 744,836.35/x
  3. Step 3: Cross multiply
    1,288,665.34x = 1,778,254.12 × 744,836.35
  4. Step 4: Simplify right side
    1,288,665.34x = 1,324,508,308,113.26
  5. Step 5: Solve for x
    x = 1,324,508,308,113.26/1,288,665.34
  6. Step 6: Final answer
    x = 1,027,814.02

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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.