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Finding the Fourth Proportional to 554,616.48, 831,945.57 and 155,247

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Solution

The fourth proportional to 554,616.48, 831,945.57 and 155,247 is: 232,876.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,616.48 : 831,945.57 = 155,247 : x
  2. Step 2: Convert to fraction form
    554,616.48/831,945.57 = 155,247/x
  3. Step 3: Cross multiply
    554,616.48x = 831,945.57 × 155,247
  4. Step 4: Simplify right side
    554,616.48x = 129,157,053,905.79
  5. Step 5: Solve for x
    x = 129,157,053,905.79/554,616.48
  6. Step 6: Final answer
    x = 232,876.34

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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.