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Finding the Fourth Proportional to 553,452.60, 830,178.90 and 179,475.60

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Solution

The fourth proportional to 553,452.60, 830,178.90 and 179,475.60 is: 269,213.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,452.60 : 830,178.90 = 179,475.60 : x
  2. Step 2: Convert to fraction form
    553,452.60/830,178.90 = 179,475.60/x
  3. Step 3: Cross multiply
    553,452.60x = 830,178.90 × 179,475.60
  4. Step 4: Simplify right side
    553,452.60x = 148,996,856,184.84
  5. Step 5: Solve for x
    x = 148,996,856,184.84/553,452.60
  6. Step 6: Final answer
    x = 269,213.40

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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.