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Finding the Fourth Proportional to 484,442.50, 668,520.74 and 303,254.33

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Solution

The fourth proportional to 484,442.50, 668,520.74 and 303,254.33 is: 418,484.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,442.50 : 668,520.74 = 303,254.33 : x
  2. Step 2: Convert to fraction form
    484,442.50/668,520.74 = 303,254.33/x
  3. Step 3: Cross multiply
    484,442.50x = 668,520.74 × 303,254.33
  4. Step 4: Simplify right side
    484,442.50x = 202,731,810,275.77
  5. Step 5: Solve for x
    x = 202,731,810,275.77/484,442.50
  6. Step 6: Final answer
    x = 418,484.78

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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.