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Finding the Fourth Proportional to 3,668,978.88, 5,497,857.36 and 1,537,901.28

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Solution

The fourth proportional to 3,668,978.88, 5,497,857.36 and 1,537,901.28 is: 2,304,500.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,668,978.88 : 5,497,857.36 = 1,537,901.28 : x
  2. Step 2: Convert to fraction form
    3,668,978.88/5,497,857.36 = 1,537,901.28/x
  3. Step 3: Cross multiply
    3,668,978.88x = 5,497,857.36 × 1,537,901.28
  4. Step 4: Simplify right side
    3,668,978.88x = 8,455,161,871,201.42
  5. Step 5: Solve for x
    x = 8,455,161,871,201.42/3,668,978.88
  6. Step 6: Final answer
    x = 2,304,500.01

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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.