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Finding the Fourth Proportional to 611,682.80, 917,524.20 and 611,682.80

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Solution

The fourth proportional to 611,682.80, 917,524.20 and 611,682.80 is: 917,524.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,682.80 : 917,524.20 = 611,682.80 : x
  2. Step 2: Convert to fraction form
    611,682.80/917,524.20 = 611,682.80/x
  3. Step 3: Cross multiply
    611,682.80x = 917,524.20 × 611,682.80
  4. Step 4: Simplify right side
    611,682.80x = 561,233,771,723.76
  5. Step 5: Solve for x
    x = 561,233,771,723.76/611,682.80
  6. Step 6: Final answer
    x = 917,524.20

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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.