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Finding the Fourth Proportional to 640,816.03, 961,289.79 and 241,792.57

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Solution

The fourth proportional to 640,816.03, 961,289.79 and 241,792.57 is: 362,713.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,816.03 : 961,289.79 = 241,792.57 : x
  2. Step 2: Convert to fraction form
    640,816.03/961,289.79 = 241,792.57/x
  3. Step 3: Cross multiply
    640,816.03x = 961,289.79 × 241,792.57
  4. Step 4: Simplify right side
    640,816.03x = 232,432,728,838.86
  5. Step 5: Solve for x
    x = 232,432,728,838.86/640,816.03
  6. Step 6: Final answer
    x = 362,713.66

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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.