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Finding the Fourth Proportional to 484,388.63, 726,746.29 and 214,479.92

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Solution

The fourth proportional to 484,388.63, 726,746.29 and 214,479.92 is: 321,792.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,388.63 : 726,746.29 = 214,479.92 : x
  2. Step 2: Convert to fraction form
    484,388.63/726,746.29 = 214,479.92/x
  3. Step 3: Cross multiply
    484,388.63x = 726,746.29 × 214,479.92
  4. Step 4: Simplify right side
    484,388.63x = 155,872,487,420.16
  5. Step 5: Solve for x
    x = 155,872,487,420.16/484,388.63
  6. Step 6: Final answer
    x = 321,792.21

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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.