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Finding the Fourth Proportional to 707,006.40, 1,058,954.40 and 613,694.40

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Solution

The fourth proportional to 707,006.40, 1,058,954.40 and 613,694.40 is: 919,191.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,006.40 : 1,058,954.40 = 613,694.40 : x
  2. Step 2: Convert to fraction form
    707,006.40/1,058,954.40 = 613,694.40/x
  3. Step 3: Cross multiply
    707,006.40x = 1,058,954.40 × 613,694.40
  4. Step 4: Simplify right side
    707,006.40x = 649,874,385,135.36
  5. Step 5: Solve for x
    x = 649,874,385,135.36/707,006.40
  6. Step 6: Final answer
    x = 919,191.66

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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.