Home / 1,278,352.48-1,916,906.64-679,600.48

Finding the Fourth Proportional to 1,278,352.48, 1,916,906.64 and 679,600.48

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Solution

The fourth proportional to 1,278,352.48, 1,916,906.64 and 679,600.48 is: 1,019,070.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,352.48 : 1,916,906.64 = 679,600.48 : x
  2. Step 2: Convert to fraction form
    1,278,352.48/1,916,906.64 = 679,600.48/x
  3. Step 3: Cross multiply
    1,278,352.48x = 1,916,906.64 × 679,600.48
  4. Step 4: Simplify right side
    1,278,352.48x = 1,302,730,672,659.19
  5. Step 5: Solve for x
    x = 1,302,730,672,659.19/1,278,352.48
  6. Step 6: Final answer
    x = 1,019,070.01

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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.