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Finding the Fourth Proportional to 432,904.60, 649,356.90 and 273,472.30

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Solution

The fourth proportional to 432,904.60, 649,356.90 and 273,472.30 is: 410,208.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,904.60 : 649,356.90 = 273,472.30 : x
  2. Step 2: Convert to fraction form
    432,904.60/649,356.90 = 273,472.30/x
  3. Step 3: Cross multiply
    432,904.60x = 649,356.90 × 273,472.30
  4. Step 4: Simplify right side
    432,904.60x = 177,581,124,963.87
  5. Step 5: Solve for x
    x = 177,581,124,963.87/432,904.60
  6. Step 6: Final answer
    x = 410,208.45

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1.5x scale

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.