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Finding the Fourth Proportional to 611,748.30, 917,752.05 and 185,249.10

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Solution

The fourth proportional to 611,748.30, 917,752.05 and 185,249.10 is: 277,912.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,748.30 : 917,752.05 = 185,249.10 : x
  2. Step 2: Convert to fraction form
    611,748.30/917,752.05 = 185,249.10/x
  3. Step 3: Cross multiply
    611,748.30x = 917,752.05 × 185,249.10
  4. Step 4: Simplify right side
    611,748.30x = 170,012,741,285.66
  5. Step 5: Solve for x
    x = 170,012,741,285.66/611,748.30
  6. Step 6: Final answer
    x = 277,912.90

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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.