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Finding the Fourth Proportional to 484,686.92, 668,432.49 and 303,415.35

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Solution

The fourth proportional to 484,686.92, 668,432.49 and 303,415.35 is: 418,440.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,686.92 : 668,432.49 = 303,415.35 : x
  2. Step 2: Convert to fraction form
    484,686.92/668,432.49 = 303,415.35/x
  3. Step 3: Cross multiply
    484,686.92x = 668,432.49 × 303,415.35
  4. Step 4: Simplify right side
    484,686.92x = 202,812,677,904.72
  5. Step 5: Solve for x
    x = 202,812,677,904.72/484,686.92
  6. Step 6: Final answer
    x = 418,440.59

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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.