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Finding the Fourth Proportional to 458,943.90, 633,321.99 and 255,009.12

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Solution

The fourth proportional to 458,943.90, 633,321.99 and 255,009.12 is: 351,901.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,943.90 : 633,321.99 = 255,009.12 : x
  2. Step 2: Convert to fraction form
    458,943.90/633,321.99 = 255,009.12/x
  3. Step 3: Cross multiply
    458,943.90x = 633,321.99 × 255,009.12
  4. Step 4: Simplify right side
    458,943.90x = 161,502,883,346.55
  5. Step 5: Solve for x
    x = 161,502,883,346.55/458,943.90
  6. Step 6: Final answer
    x = 351,901.14

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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.