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Finding the Fourth Proportional to 591,693.40, 888,327.51 and 311,407.48

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Solution

The fourth proportional to 591,693.40, 888,327.51 and 311,407.48 is: 467,525.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,693.40 : 888,327.51 = 311,407.48 : x
  2. Step 2: Convert to fraction form
    591,693.40/888,327.51 = 311,407.48/x
  3. Step 3: Cross multiply
    591,693.40x = 888,327.51 × 311,407.48
  4. Step 4: Simplify right side
    591,693.40x = 276,631,831,303.78
  5. Step 5: Solve for x
    x = 276,631,831,303.78/591,693.40
  6. Step 6: Final answer
    x = 467,525.63

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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.