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Finding the Fourth Proportional to 308,604.64, 460,856.35 and 305,264.68

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Solution

The fourth proportional to 308,604.64, 460,856.35 and 305,264.68 is: 455,868.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,604.64 : 460,856.35 = 305,264.68 : x
  2. Step 2: Convert to fraction form
    308,604.64/460,856.35 = 305,264.68/x
  3. Step 3: Cross multiply
    308,604.64x = 460,856.35 × 305,264.68
  4. Step 4: Simplify right side
    308,604.64x = 140,683,166,208.72
  5. Step 5: Solve for x
    x = 140,683,166,208.72/308,604.64
  6. Step 6: Final answer
    x = 455,868.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.