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Finding the Fourth Proportional to 672,157.61, 927,153.72 and 400,022.30

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Solution

The fourth proportional to 672,157.61, 927,153.72 and 400,022.30 is: 551,778.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,157.61 : 927,153.72 = 400,022.30 : x
  2. Step 2: Convert to fraction form
    672,157.61/927,153.72 = 400,022.30/x
  3. Step 3: Cross multiply
    672,157.61x = 927,153.72 × 400,022.30
  4. Step 4: Simplify right side
    672,157.61x = 370,882,163,527.96
  5. Step 5: Solve for x
    x = 370,882,163,527.96/672,157.61
  6. Step 6: Final answer
    x = 551,778.57

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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.