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Finding the Fourth Proportional to 524,990.40, 787,458.08 and 150,998.72

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Solution

The fourth proportional to 524,990.40, 787,458.08 and 150,998.72 is: 226,490.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,990.40 : 787,458.08 = 150,998.72 : x
  2. Step 2: Convert to fraction form
    524,990.40/787,458.08 = 150,998.72/x
  3. Step 3: Cross multiply
    524,990.40x = 787,458.08 × 150,998.72
  4. Step 4: Simplify right side
    524,990.40x = 118,905,162,133.66
  5. Step 5: Solve for x
    x = 118,905,162,133.66/524,990.40
  6. Step 6: Final answer
    x = 226,490.16

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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.