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Finding the Fourth Proportional to 407,906.52, 562,991.52 and 260,637.18

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Solution

The fourth proportional to 407,906.52, 562,991.52 and 260,637.18 is: 359,730.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,906.52 : 562,991.52 = 260,637.18 : x
  2. Step 2: Convert to fraction form
    407,906.52/562,991.52 = 260,637.18/x
  3. Step 3: Cross multiply
    407,906.52x = 562,991.52 × 260,637.18
  4. Step 4: Simplify right side
    407,906.52x = 146,736,522,136.71
  5. Step 5: Solve for x
    x = 146,736,522,136.71/407,906.52
  6. Step 6: Final answer
    x = 359,730.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.