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Finding the Fourth Proportional to 539,955.73, 745,185.05 and 298,264.69

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Solution

The fourth proportional to 539,955.73, 745,185.05 and 298,264.69 is: 411,630.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,955.73 : 745,185.05 = 298,264.69 : x
  2. Step 2: Convert to fraction form
    539,955.73/745,185.05 = 298,264.69/x
  3. Step 3: Cross multiply
    539,955.73x = 745,185.05 × 298,264.69
  4. Step 4: Simplify right side
    539,955.73x = 222,262,387,930.89
  5. Step 5: Solve for x
    x = 222,262,387,930.89/539,955.73
  6. Step 6: Final answer
    x = 411,630.76

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1.5x scale

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.