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Finding the Fourth Proportional to 400,528.61, 552,730.31 and 219,252.14

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Solution

The fourth proportional to 400,528.61, 552,730.31 and 219,252.14 is: 302,568.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,528.61 : 552,730.31 = 219,252.14 : x
  2. Step 2: Convert to fraction form
    400,528.61/552,730.31 = 219,252.14/x
  3. Step 3: Cross multiply
    400,528.61x = 552,730.31 × 219,252.14
  4. Step 4: Simplify right side
    400,528.61x = 121,187,303,310.36
  5. Step 5: Solve for x
    x = 121,187,303,310.36/400,528.61
  6. Step 6: Final answer
    x = 302,568.41

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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.