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Finding the Fourth Proportional to 631,119.66, 945,978.12 and 480,864.48

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Solution

The fourth proportional to 631,119.66, 945,978.12 and 480,864.48 is: 720,762.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,119.66 : 945,978.12 = 480,864.48 : x
  2. Step 2: Convert to fraction form
    631,119.66/945,978.12 = 480,864.48/x
  3. Step 3: Cross multiply
    631,119.66x = 945,978.12 × 480,864.48
  4. Step 4: Simplify right side
    631,119.66x = 454,887,276,765.18
  5. Step 5: Solve for x
    x = 454,887,276,765.18/631,119.66
  6. Step 6: Final answer
    x = 720,762.33

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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.