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Finding the Fourth Proportional to 622,913.20, 934,807.20 and 268,181.80

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Solution

The fourth proportional to 622,913.20, 934,807.20 and 268,181.80 is: 402,461.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,913.20 : 934,807.20 = 268,181.80 : x
  2. Step 2: Convert to fraction form
    622,913.20/934,807.20 = 268,181.80/x
  3. Step 3: Cross multiply
    622,913.20x = 934,807.20 × 268,181.80
  4. Step 4: Simplify right side
    622,913.20x = 250,698,277,548.96
  5. Step 5: Solve for x
    x = 250,698,277,548.96/622,913.20
  6. Step 6: Final answer
    x = 402,461.01

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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.