Home / 666,613.73-919,926.35-376,286.42

Finding the Fourth Proportional to 666,613.73, 919,926.35 and 376,286.42

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Solution

The fourth proportional to 666,613.73, 919,926.35 and 376,286.42 is: 519,274.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,613.73 : 919,926.35 = 376,286.42 : x
  2. Step 2: Convert to fraction form
    666,613.73/919,926.35 = 376,286.42/x
  3. Step 3: Cross multiply
    666,613.73x = 919,926.35 × 376,286.42
  4. Step 4: Simplify right side
    666,613.73x = 346,155,786,424.10
  5. Step 5: Solve for x
    x = 346,155,786,424.10/666,613.73
  6. Step 6: Final answer
    x = 519,274.92

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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.