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Finding the Fourth Proportional to 547,637.76, 755,424.72 and 329,694.84

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Solution

The fourth proportional to 547,637.76, 755,424.72 and 329,694.84 is: 454,789.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,637.76 : 755,424.72 = 329,694.84 : x
  2. Step 2: Convert to fraction form
    547,637.76/755,424.72 = 329,694.84/x
  3. Step 3: Cross multiply
    547,637.76x = 755,424.72 × 329,694.84
  4. Step 4: Simplify right side
    547,637.76x = 249,059,632,192.45
  5. Step 5: Solve for x
    x = 249,059,632,192.45/547,637.76
  6. Step 6: Final answer
    x = 454,789.01

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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.