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Finding the Fourth Proportional to 443,827.06, 612,704.06 and 291,099.28

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Solution

The fourth proportional to 443,827.06, 612,704.06 and 291,099.28 is: 401,863.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,827.06 : 612,704.06 = 291,099.28 : x
  2. Step 2: Convert to fraction form
    443,827.06/612,704.06 = 291,099.28/x
  3. Step 3: Cross multiply
    443,827.06x = 612,704.06 × 291,099.28
  4. Step 4: Simplify right side
    443,827.06x = 178,357,709,915.07
  5. Step 5: Solve for x
    x = 178,357,709,915.07/443,827.06
  6. Step 6: Final answer
    x = 401,863.08

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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.