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Finding the Fourth Proportional to 334,477.40, 501,035.70 and 207,728.60

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Solution

The fourth proportional to 334,477.40, 501,035.70 and 207,728.60 is: 311,170.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,477.40 : 501,035.70 = 207,728.60 : x
  2. Step 2: Convert to fraction form
    334,477.40/501,035.70 = 207,728.60/x
  3. Step 3: Cross multiply
    334,477.40x = 501,035.70 × 207,728.60
  4. Step 4: Simplify right side
    334,477.40x = 104,079,444,511.02
  5. Step 5: Solve for x
    x = 104,079,444,511.02/334,477.40
  6. Step 6: Final answer
    x = 311,170.33

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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.