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Finding the Fourth Proportional to 553,848.40, 830,772.60 and 179,909.20

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Solution

The fourth proportional to 553,848.40, 830,772.60 and 179,909.20 is: 269,863.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,848.40 : 830,772.60 = 179,909.20 : x
  2. Step 2: Convert to fraction form
    553,848.40/830,772.60 = 179,909.20/x
  3. Step 3: Cross multiply
    553,848.40x = 830,772.60 × 179,909.20
  4. Step 4: Simplify right side
    553,848.40x = 149,463,633,847.92
  5. Step 5: Solve for x
    x = 149,463,633,847.92/553,848.40
  6. Step 6: Final answer
    x = 269,863.80

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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.