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Finding the Fourth Proportional to 430,802.88, 646,158.24 and 150,325.44

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Solution

The fourth proportional to 430,802.88, 646,158.24 and 150,325.44 is: 225,472.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,802.88 : 646,158.24 = 150,325.44 : x
  2. Step 2: Convert to fraction form
    430,802.88/646,158.24 = 150,325.44/x
  3. Step 3: Cross multiply
    430,802.88x = 646,158.24 × 150,325.44
  4. Step 4: Simplify right side
    430,802.88x = 97,134,021,737.63
  5. Step 5: Solve for x
    x = 97,134,021,737.63/430,802.88
  6. Step 6: Final answer
    x = 225,472.08

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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.