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Finding the Fourth Proportional to 1,752,706.54, 2,418,721.32 and 947,890.54

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Solution

The fourth proportional to 1,752,706.54, 2,418,721.32 and 947,890.54 is: 1,308,081.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,752,706.54 : 2,418,721.32 = 947,890.54 : x
  2. Step 2: Convert to fraction form
    1,752,706.54/2,418,721.32 = 947,890.54/x
  3. Step 3: Cross multiply
    1,752,706.54x = 2,418,721.32 × 947,890.54
  4. Step 4: Simplify right side
    1,752,706.54x = 2,292,683,058,124.31
  5. Step 5: Solve for x
    x = 2,292,683,058,124.31/1,752,706.54
  6. Step 6: Final answer
    x = 1,308,081.53

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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.