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Finding the Fourth Proportional to 552,686.40, 829,029.60 and 197,728.20

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Solution

The fourth proportional to 552,686.40, 829,029.60 and 197,728.20 is: 296,592.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,686.40 : 829,029.60 = 197,728.20 : x
  2. Step 2: Convert to fraction form
    552,686.40/829,029.60 = 197,728.20/x
  3. Step 3: Cross multiply
    552,686.40x = 829,029.60 × 197,728.20
  4. Step 4: Simplify right side
    552,686.40x = 163,922,530,554.72
  5. Step 5: Solve for x
    x = 163,922,530,554.72/552,686.40
  6. Step 6: Final answer
    x = 296,592.30

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Similar ratio
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1.5x scale

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.