Home / 1,278,345.10-1,917,517.65-805,564.30

Finding the Fourth Proportional to 1,278,345.10, 1,917,517.65 and 805,564.30

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Solution

The fourth proportional to 1,278,345.10, 1,917,517.65 and 805,564.30 is: 1,208,346.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,345.10 : 1,917,517.65 = 805,564.30 : x
  2. Step 2: Convert to fraction form
    1,278,345.10/1,917,517.65 = 805,564.30/x
  3. Step 3: Cross multiply
    1,278,345.10x = 1,917,517.65 × 805,564.30
  4. Step 4: Simplify right side
    1,278,345.10x = 1,544,683,763,459.90
  5. Step 5: Solve for x
    x = 1,544,683,763,459.90/1,278,345.10
  6. Step 6: Final answer
    x = 1,208,346.45

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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.