Home / 1,281,384.14-1,768,016.85-765,037.76

Finding the Fourth Proportional to 1,281,384.14, 1,768,016.85 and 765,037.76

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Solution

The fourth proportional to 1,281,384.14, 1,768,016.85 and 765,037.76 is: 1,055,577.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,384.14 : 1,768,016.85 = 765,037.76 : x
  2. Step 2: Convert to fraction form
    1,281,384.14/1,768,016.85 = 765,037.76/x
  3. Step 3: Cross multiply
    1,281,384.14x = 1,768,016.85 × 765,037.76
  4. Step 4: Simplify right side
    1,281,384.14x = 1,352,599,650,566.26
  5. Step 5: Solve for x
    x = 1,352,599,650,566.26/1,281,384.14
  6. Step 6: Final answer
    x = 1,055,577.02

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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.