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Finding the Fourth Proportional to 622,816.17, 933,498.42 and 285,892.39

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Solution

The fourth proportional to 622,816.17, 933,498.42 and 285,892.39 is: 428,505.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,816.17 : 933,498.42 = 285,892.39 : x
  2. Step 2: Convert to fraction form
    622,816.17/933,498.42 = 285,892.39/x
  3. Step 3: Cross multiply
    622,816.17x = 933,498.42 × 285,892.39
  4. Step 4: Simplify right side
    622,816.17x = 266,880,094,355.02
  5. Step 5: Solve for x
    x = 266,880,094,355.02/622,816.17
  6. Step 6: Final answer
    x = 428,505.40

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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.