Home / 1,100,656.11-1,518,920.99-665,012.85

Finding the Fourth Proportional to 1,100,656.11, 1,518,920.99 and 665,012.85

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Solution

The fourth proportional to 1,100,656.11, 1,518,920.99 and 665,012.85 is: 917,727.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,656.11 : 1,518,920.99 = 665,012.85 : x
  2. Step 2: Convert to fraction form
    1,100,656.11/1,518,920.99 = 665,012.85/x
  3. Step 3: Cross multiply
    1,100,656.11x = 1,518,920.99 × 665,012.85
  4. Step 4: Simplify right side
    1,100,656.11x = 1,010,101,973,159.66
  5. Step 5: Solve for x
    x = 1,010,101,973,159.66/1,100,656.11
  6. Step 6: Final answer
    x = 917,727.13

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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.