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Finding the Fourth Proportional to 484,215.84, 668,185.20 and 269,341.20

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Solution

The fourth proportional to 484,215.84, 668,185.20 and 269,341.20 is: 371,672.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,215.84 : 668,185.20 = 269,341.20 : x
  2. Step 2: Convert to fraction form
    484,215.84/668,185.20 = 269,341.20/x
  3. Step 3: Cross multiply
    484,215.84x = 668,185.20 × 269,341.20
  4. Step 4: Simplify right side
    484,215.84x = 179,969,803,590.24
  5. Step 5: Solve for x
    x = 179,969,803,590.24/484,215.84
  6. Step 6: Final answer
    x = 371,672.69

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1.5x scale

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.