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Finding the Fourth Proportional to 484,698.57, 668,871 and 269,838.66

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Solution

The fourth proportional to 484,698.57, 668,871 and 269,838.66 is: 372,370.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,698.57 : 668,871 = 269,838.66 : x
  2. Step 2: Convert to fraction form
    484,698.57/668,871 = 269,838.66/x
  3. Step 3: Cross multiply
    484,698.57x = 668,871 × 269,838.66
  4. Step 4: Simplify right side
    484,698.57x = 180,487,254,352.86
  5. Step 5: Solve for x
    x = 180,487,254,352.86/484,698.57
  6. Step 6: Final answer
    x = 372,370.10

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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.