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Finding the Fourth Proportional to 482,960.40, 723,749.40 and 355,606.80

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Solution

The fourth proportional to 482,960.40, 723,749.40 and 355,606.80 is: 532,901.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,960.40 : 723,749.40 = 355,606.80 : x
  2. Step 2: Convert to fraction form
    482,960.40/723,749.40 = 355,606.80/x
  3. Step 3: Cross multiply
    482,960.40x = 723,749.40 × 355,606.80
  4. Step 4: Simplify right side
    482,960.40x = 257,370,208,135.92
  5. Step 5: Solve for x
    x = 257,370,208,135.92/482,960.40
  6. Step 6: Final answer
    x = 532,901.27

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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.