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Finding the Fourth Proportional to 432,003.80, 648,005.70 and 273,373.40

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Solution

The fourth proportional to 432,003.80, 648,005.70 and 273,373.40 is: 410,060.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,003.80 : 648,005.70 = 273,373.40 : x
  2. Step 2: Convert to fraction form
    432,003.80/648,005.70 = 273,373.40/x
  3. Step 3: Cross multiply
    432,003.80x = 648,005.70 × 273,373.40
  4. Step 4: Simplify right side
    432,003.80x = 177,147,521,428.38
  5. Step 5: Solve for x
    x = 177,147,521,428.38/432,003.80
  6. Step 6: Final answer
    x = 410,060.10

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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.