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Finding the Fourth Proportional to 306,959.40, 460,439.10 and 306,959.40

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Solution

The fourth proportional to 306,959.40, 460,439.10 and 306,959.40 is: 460,439.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,959.40 : 460,439.10 = 306,959.40 : x
  2. Step 2: Convert to fraction form
    306,959.40/460,439.10 = 306,959.40/x
  3. Step 3: Cross multiply
    306,959.40x = 460,439.10 × 306,959.40
  4. Step 4: Simplify right side
    306,959.40x = 141,336,109,872.54
  5. Step 5: Solve for x
    x = 141,336,109,872.54/306,959.40
  6. Step 6: Final answer
    x = 460,439.10

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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.