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Finding the Fourth Proportional to 591,598.40, 887,954.40 and 311,316.80

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Solution

The fourth proportional to 591,598.40, 887,954.40 and 311,316.80 is: 467,268.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,598.40 : 887,954.40 = 311,316.80 : x
  2. Step 2: Convert to fraction form
    591,598.40/887,954.40 = 311,316.80/x
  3. Step 3: Cross multiply
    591,598.40x = 887,954.40 × 311,316.80
  4. Step 4: Simplify right side
    591,598.40x = 276,435,122,353.92
  5. Step 5: Solve for x
    x = 276,435,122,353.92/591,598.40
  6. Step 6: Final answer
    x = 467,268.20

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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.