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Finding the Fourth Proportional to 483,715.60, 725,688.60 and 203,088.40

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Solution

The fourth proportional to 483,715.60, 725,688.60 and 203,088.40 is: 304,680.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,715.60 : 725,688.60 = 203,088.40 : x
  2. Step 2: Convert to fraction form
    483,715.60/725,688.60 = 203,088.40/x
  3. Step 3: Cross multiply
    483,715.60x = 725,688.60 × 203,088.40
  4. Step 4: Simplify right side
    483,715.60x = 147,378,936,672.24
  5. Step 5: Solve for x
    x = 147,378,936,672.24/483,715.60
  6. Step 6: Final answer
    x = 304,680.97

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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.