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Finding the Fourth Proportional to 400,443.92, 552,605.18 and 219,152.16

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Solution

The fourth proportional to 400,443.92, 552,605.18 and 219,152.16 is: 302,425.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,443.92 : 552,605.18 = 219,152.16 : x
  2. Step 2: Convert to fraction form
    400,443.92/552,605.18 = 219,152.16/x
  3. Step 3: Cross multiply
    400,443.92x = 552,605.18 × 219,152.16
  4. Step 4: Simplify right side
    400,443.92x = 121,104,618,824.19
  5. Step 5: Solve for x
    x = 121,104,618,824.19/400,443.92
  6. Step 6: Final answer
    x = 302,425.91

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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.