Home / 1,325,930.31-1,829,697.75-781,941.42

Finding the Fourth Proportional to 1,325,930.31, 1,829,697.75 and 781,941.42

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Solution

The fourth proportional to 1,325,930.31, 1,829,697.75 and 781,941.42 is: 1,079,028.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,930.31 : 1,829,697.75 = 781,941.42 : x
  2. Step 2: Convert to fraction form
    1,325,930.31/1,829,697.75 = 781,941.42/x
  3. Step 3: Cross multiply
    1,325,930.31x = 1,829,697.75 × 781,941.42
  4. Step 4: Simplify right side
    1,325,930.31x = 1,430,716,456,805.81
  5. Step 5: Solve for x
    x = 1,430,716,456,805.81/1,325,930.31
  6. Step 6: Final answer
    x = 1,079,028.40

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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.