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Finding the Fourth Proportional to 1,934,581.78, 2,897,446.80 and 924,413.80

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Solution

The fourth proportional to 1,934,581.78, 2,897,446.80 and 924,413.80 is: 1,384,505.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934,581.78 : 2,897,446.80 = 924,413.80 : x
  2. Step 2: Convert to fraction form
    1,934,581.78/2,897,446.80 = 924,413.80/x
  3. Step 3: Cross multiply
    1,934,581.78x = 2,897,446.80 × 924,413.80
  4. Step 4: Simplify right side
    1,934,581.78x = 2,678,439,806,685.84
  5. Step 5: Solve for x
    x = 2,678,439,806,685.84/1,934,581.78
  6. Step 6: Final answer
    x = 1,384,505.86

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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.