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Finding the Fourth Proportional to 484,012.20, 726,018.30 and 465,641.40

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Solution

The fourth proportional to 484,012.20, 726,018.30 and 465,641.40 is: 698,462.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,012.20 : 726,018.30 = 465,641.40 : x
  2. Step 2: Convert to fraction form
    484,012.20/726,018.30 = 465,641.40/x
  3. Step 3: Cross multiply
    484,012.20x = 726,018.30 × 465,641.40
  4. Step 4: Simplify right side
    484,012.20x = 338,064,177,637.62
  5. Step 5: Solve for x
    x = 338,064,177,637.62/484,012.20
  6. Step 6: Final answer
    x = 698,462.10

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Similar ratio
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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.