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Finding the Fourth Proportional to 775,655.04, 1,163,508 and 214,642.56

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Solution

The fourth proportional to 775,655.04, 1,163,508 and 214,642.56 is: 321,970.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,655.04 : 1,163,508 = 214,642.56 : x
  2. Step 2: Convert to fraction form
    775,655.04/1,163,508 = 214,642.56/x
  3. Step 3: Cross multiply
    775,655.04x = 1,163,508 × 214,642.56
  4. Step 4: Simplify right side
    775,655.04x = 249,738,335,700.48
  5. Step 5: Solve for x
    x = 249,738,335,700.48/775,655.04
  6. Step 6: Final answer
    x = 321,970.88

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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.