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Finding the Fourth Proportional to 486,698.08, 729,444.40 and 275,696.32

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Solution

The fourth proportional to 486,698.08, 729,444.40 and 275,696.32 is: 413,203.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,698.08 : 729,444.40 = 275,696.32 : x
  2. Step 2: Convert to fraction form
    486,698.08/729,444.40 = 275,696.32/x
  3. Step 3: Cross multiply
    486,698.08x = 729,444.40 × 275,696.32
  4. Step 4: Simplify right side
    486,698.08x = 201,105,136,724.61
  5. Step 5: Solve for x
    x = 201,105,136,724.61/486,698.08
  6. Step 6: Final answer
    x = 413,203.06

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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.