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Finding the Fourth Proportional to 539,918.85, 745,170.80 and 333,307.56

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Solution

The fourth proportional to 539,918.85, 745,170.80 and 333,307.56 is: 460,015.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,918.85 : 745,170.80 = 333,307.56 : x
  2. Step 2: Convert to fraction form
    539,918.85/745,170.80 = 333,307.56/x
  3. Step 3: Cross multiply
    539,918.85x = 745,170.80 × 333,307.56
  4. Step 4: Simplify right side
    539,918.85x = 248,371,059,464.71
  5. Step 5: Solve for x
    x = 248,371,059,464.71/539,918.85
  6. Step 6: Final answer
    x = 460,015.54

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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.