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Finding the Fourth Proportional to 3,748,503.80, 5,622,736.98 and 908,616.08

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Solution

The fourth proportional to 3,748,503.80, 5,622,736.98 and 908,616.08 is: 1,362,919.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,748,503.80 : 5,622,736.98 = 908,616.08 : x
  2. Step 2: Convert to fraction form
    3,748,503.80/5,622,736.98 = 908,616.08/x
  3. Step 3: Cross multiply
    3,748,503.80x = 5,622,736.98 × 908,616.08
  4. Step 4: Simplify right side
    3,748,503.80x = 5,108,909,233,638.64
  5. Step 5: Solve for x
    x = 5,108,909,233,638.64/3,748,503.80
  6. Step 6: Final answer
    x = 1,362,919.58

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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.