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Finding the Fourth Proportional to 484,386.30, 726,251.40 and 247,534.20

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Solution

The fourth proportional to 484,386.30, 726,251.40 and 247,534.20 is: 371,133.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,386.30 : 726,251.40 = 247,534.20 : x
  2. Step 2: Convert to fraction form
    484,386.30/726,251.40 = 247,534.20/x
  3. Step 3: Cross multiply
    484,386.30x = 726,251.40 × 247,534.20
  4. Step 4: Simplify right side
    484,386.30x = 179,772,059,297.88
  5. Step 5: Solve for x
    x = 179,772,059,297.88/484,386.30
  6. Step 6: Final answer
    x = 371,133.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.