Home / 1,385,150.42-1,911,539.73-868,926.06

Finding the Fourth Proportional to 1,385,150.42, 1,911,539.73 and 868,926.06

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Solution

The fourth proportional to 1,385,150.42, 1,911,539.73 and 868,926.06 is: 1,199,138.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,150.42 : 1,911,539.73 = 868,926.06 : x
  2. Step 2: Convert to fraction form
    1,385,150.42/1,911,539.73 = 868,926.06/x
  3. Step 3: Cross multiply
    1,385,150.42x = 1,911,539.73 × 868,926.06
  4. Step 4: Simplify right side
    1,385,150.42x = 1,660,986,681,560.78
  5. Step 5: Solve for x
    x = 1,660,986,681,560.78/1,385,150.42
  6. Step 6: Final answer
    x = 1,199,138.13

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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.