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Finding the Fourth Proportional to 442,871.55, 664,307.33 and 404,164.35

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Solution

The fourth proportional to 442,871.55, 664,307.33 and 404,164.35 is: 606,246.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,871.55 : 664,307.33 = 404,164.35 : x
  2. Step 2: Convert to fraction form
    442,871.55/664,307.33 = 404,164.35/x
  3. Step 3: Cross multiply
    442,871.55x = 664,307.33 × 404,164.35
  4. Step 4: Simplify right side
    442,871.55x = 268,489,338,208.86
  5. Step 5: Solve for x
    x = 268,489,338,208.86/442,871.55
  6. Step 6: Final answer
    x = 606,246.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.