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Finding the Fourth Proportional to 545,928.40, 818,892.60 and 166,848.40

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Solution

The fourth proportional to 545,928.40, 818,892.60 and 166,848.40 is: 250,272.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,928.40 : 818,892.60 = 166,848.40 : x
  2. Step 2: Convert to fraction form
    545,928.40/818,892.60 = 166,848.40/x
  3. Step 3: Cross multiply
    545,928.40x = 818,892.60 × 166,848.40
  4. Step 4: Simplify right side
    545,928.40x = 136,630,920,081.84
  5. Step 5: Solve for x
    x = 136,630,920,081.84/545,928.40
  6. Step 6: Final answer
    x = 250,272.60

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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.