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Finding the Fourth Proportional to 552,661.20, 828,554.40 and 303,343.20

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Solution

The fourth proportional to 552,661.20, 828,554.40 and 303,343.20 is: 454,774.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,661.20 : 828,554.40 = 303,343.20 : x
  2. Step 2: Convert to fraction form
    552,661.20/828,554.40 = 303,343.20/x
  3. Step 3: Cross multiply
    552,661.20x = 828,554.40 × 303,343.20
  4. Step 4: Simplify right side
    552,661.20x = 251,336,343,070.08
  5. Step 5: Solve for x
    x = 251,336,343,070.08/552,661.20
  6. Step 6: Final answer
    x = 454,774.72

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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.