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Finding the Fourth Proportional to 630,710.42, 946,190.25 and 231,354.90

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Solution

The fourth proportional to 630,710.42, 946,190.25 and 231,354.90 is: 347,078.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,710.42 : 946,190.25 = 231,354.90 : x
  2. Step 2: Convert to fraction form
    630,710.42/946,190.25 = 231,354.90/x
  3. Step 3: Cross multiply
    630,710.42x = 946,190.25 × 231,354.90
  4. Step 4: Simplify right side
    630,710.42x = 218,905,750,669.73
  5. Step 5: Solve for x
    x = 218,905,750,669.73/630,710.42
  6. Step 6: Final answer
    x = 347,078.07

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Double scale
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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.