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Finding the Fourth Proportional to 563,759.40, 845,639.10 and 169,724.20

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Solution

The fourth proportional to 563,759.40, 845,639.10 and 169,724.20 is: 254,586.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,759.40 : 845,639.10 = 169,724.20 : x
  2. Step 2: Convert to fraction form
    563,759.40/845,639.10 = 169,724.20/x
  3. Step 3: Cross multiply
    563,759.40x = 845,639.10 × 169,724.20
  4. Step 4: Simplify right side
    563,759.40x = 143,525,419,736.22
  5. Step 5: Solve for x
    x = 143,525,419,736.22/563,759.40
  6. Step 6: Final answer
    x = 254,586.30

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Half scale
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Double scale
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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.