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Finding the Fourth Proportional to 1,134,042.11, 1,564,978.02 and 624,744.48

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Solution

The fourth proportional to 1,134,042.11, 1,564,978.02 and 624,744.48 is: 862,147.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134,042.11 : 1,564,978.02 = 624,744.48 : x
  2. Step 2: Convert to fraction form
    1,134,042.11/1,564,978.02 = 624,744.48/x
  3. Step 3: Cross multiply
    1,134,042.11x = 1,564,978.02 × 624,744.48
  4. Step 4: Simplify right side
    1,134,042.11x = 977,711,379,316.33
  5. Step 5: Solve for x
    x = 977,711,379,316.33/1,134,042.11
  6. Step 6: Final answer
    x = 862,147.34

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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.