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Finding the Fourth Proportional to 330,040.32, 455,827.14 and 223,052.28

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Solution

The fourth proportional to 330,040.32, 455,827.14 and 223,052.28 is: 308,063.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,040.32 : 455,827.14 = 223,052.28 : x
  2. Step 2: Convert to fraction form
    330,040.32/455,827.14 = 223,052.28/x
  3. Step 3: Cross multiply
    330,040.32x = 455,827.14 × 223,052.28
  4. Step 4: Simplify right side
    330,040.32x = 101,673,282,862.88
  5. Step 5: Solve for x
    x = 101,673,282,862.88/330,040.32
  6. Step 6: Final answer
    x = 308,063.22

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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.