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Finding the Fourth Proportional to 624,156.40, 936,234.60 and 474,857.20

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Solution

The fourth proportional to 624,156.40, 936,234.60 and 474,857.20 is: 712,285.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,156.40 : 936,234.60 = 474,857.20 : x
  2. Step 2: Convert to fraction form
    624,156.40/936,234.60 = 474,857.20/x
  3. Step 3: Cross multiply
    624,156.40x = 936,234.60 × 474,857.20
  4. Step 4: Simplify right side
    624,156.40x = 444,577,740,699.12
  5. Step 5: Solve for x
    x = 444,577,740,699.12/624,156.40
  6. Step 6: Final answer
    x = 712,285.80

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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.