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Finding the Fourth Proportional to 662,316.54, 993,484.12 and 189,001.95

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Solution

The fourth proportional to 662,316.54, 993,484.12 and 189,001.95 is: 283,505.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,316.54 : 993,484.12 = 189,001.95 : x
  2. Step 2: Convert to fraction form
    662,316.54/993,484.12 = 189,001.95/x
  3. Step 3: Cross multiply
    662,316.54x = 993,484.12 × 189,001.95
  4. Step 4: Simplify right side
    662,316.54x = 187,770,431,006.61
  5. Step 5: Solve for x
    x = 187,770,431,006.61/662,316.54
  6. Step 6: Final answer
    x = 283,505.58

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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.