Home / 813,528.34-1,122,289.41-511,888.66

Finding the Fourth Proportional to 813,528.34, 1,122,289.41 and 511,888.66

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Solution

The fourth proportional to 813,528.34, 1,122,289.41 and 511,888.66 is: 706,167.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,528.34 : 1,122,289.41 = 511,888.66 : x
  2. Step 2: Convert to fraction form
    813,528.34/1,122,289.41 = 511,888.66/x
  3. Step 3: Cross multiply
    813,528.34x = 1,122,289.41 × 511,888.66
  4. Step 4: Simplify right side
    813,528.34x = 574,487,222,217.09
  5. Step 5: Solve for x
    x = 574,487,222,217.09/813,528.34
  6. Step 6: Final answer
    x = 706,167.44

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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.