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Finding the Fourth Proportional to 484,643.82, 668,792.79 and 269,776.74

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Solution

The fourth proportional to 484,643.82, 668,792.79 and 269,776.74 is: 372,283.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,643.82 : 668,792.79 = 269,776.74 : x
  2. Step 2: Convert to fraction form
    484,643.82/668,792.79 = 269,776.74/x
  3. Step 3: Cross multiply
    484,643.82x = 668,792.79 × 269,776.74
  4. Step 4: Simplify right side
    484,643.82x = 180,424,738,621.71
  5. Step 5: Solve for x
    x = 180,424,738,621.71/484,643.82
  6. Step 6: Final answer
    x = 372,283.17

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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.