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Finding the Fourth Proportional to 432,472.68, 648,800.15 and 162,602.55

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Solution

The fourth proportional to 432,472.68, 648,800.15 and 162,602.55 is: 243,938.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,472.68 : 648,800.15 = 162,602.55 : x
  2. Step 2: Convert to fraction form
    432,472.68/648,800.15 = 162,602.55/x
  3. Step 3: Cross multiply
    432,472.68x = 648,800.15 × 162,602.55
  4. Step 4: Simplify right side
    432,472.68x = 105,496,558,017.37
  5. Step 5: Solve for x
    x = 105,496,558,017.37/432,472.68
  6. Step 6: Final answer
    x = 243,938.09

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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.