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Finding the Fourth Proportional to 468,672.24, 646,832.08 and 287,352.12

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Solution

The fourth proportional to 468,672.24, 646,832.08 and 287,352.12 is: 396,585.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,672.24 : 646,832.08 = 287,352.12 : x
  2. Step 2: Convert to fraction form
    468,672.24/646,832.08 = 287,352.12/x
  3. Step 3: Cross multiply
    468,672.24x = 646,832.08 × 287,352.12
  4. Step 4: Simplify right side
    468,672.24x = 185,868,569,472.01
  5. Step 5: Solve for x
    x = 185,868,569,472.01/468,672.24
  6. Step 6: Final answer
    x = 396,585.40

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1.5x scale

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.