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Finding the Fourth Proportional to 539,919.85, 745,172.18 and 333,308.56

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Solution

The fourth proportional to 539,919.85, 745,172.18 and 333,308.56 is: 460,016.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,919.85 : 745,172.18 = 333,308.56 : x
  2. Step 2: Convert to fraction form
    539,919.85/745,172.18 = 333,308.56/x
  3. Step 3: Cross multiply
    539,919.85x = 745,172.18 × 333,308.56
  4. Step 4: Simplify right side
    539,919.85x = 248,372,266,267.86
  5. Step 5: Solve for x
    x = 248,372,266,267.86/539,919.85
  6. Step 6: Final answer
    x = 460,016.92

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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.