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Finding the Fourth Proportional to 3,476,705.40, 5,215,058.10 and 3,476,705.40

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Solution

The fourth proportional to 3,476,705.40, 5,215,058.10 and 3,476,705.40 is: 5,215,058.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,476,705.40 : 5,215,058.10 = 3,476,705.40 : x
  2. Step 2: Convert to fraction form
    3,476,705.40/5,215,058.10 = 3,476,705.40/x
  3. Step 3: Cross multiply
    3,476,705.40x = 5,215,058.10 × 3,476,705.40
  4. Step 4: Simplify right side
    3,476,705.40x = 18,131,220,657,583.74
  5. Step 5: Solve for x
    x = 18,131,220,657,583.74/3,476,705.40
  6. Step 6: Final answer
    x = 5,215,058.10

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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.