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Finding the Fourth Proportional to 764,992.04, 1,055,726.34 and 425,453

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Solution

The fourth proportional to 764,992.04, 1,055,726.34 and 425,453 is: 587,145.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,992.04 : 1,055,726.34 = 425,453 : x
  2. Step 2: Convert to fraction form
    764,992.04/1,055,726.34 = 425,453/x
  3. Step 3: Cross multiply
    764,992.04x = 1,055,726.34 × 425,453
  4. Step 4: Simplify right side
    764,992.04x = 449,161,938,532.02
  5. Step 5: Solve for x
    x = 449,161,938,532.02/764,992.04
  6. Step 6: Final answer
    x = 587,145.90

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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.