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Finding the Fourth Proportional to 539,897.58, 745,044.39 and 298,174.95

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Solution

The fourth proportional to 539,897.58, 745,044.39 and 298,174.95 is: 411,473.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,897.58 : 745,044.39 = 298,174.95 : x
  2. Step 2: Convert to fraction form
    539,897.58/745,044.39 = 298,174.95/x
  3. Step 3: Cross multiply
    539,897.58x = 745,044.39 × 298,174.95
  4. Step 4: Simplify right side
    539,897.58x = 222,153,573,736.03
  5. Step 5: Solve for x
    x = 222,153,573,736.03/539,897.58
  6. Step 6: Final answer
    x = 411,473.55

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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.