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Finding the Fourth Proportional to 524,744.10, 787,116.15 and 419,768.10

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Solution

The fourth proportional to 524,744.10, 787,116.15 and 419,768.10 is: 629,652.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,744.10 : 787,116.15 = 419,768.10 : x
  2. Step 2: Convert to fraction form
    524,744.10/787,116.15 = 419,768.10/x
  3. Step 3: Cross multiply
    524,744.10x = 787,116.15 × 419,768.10
  4. Step 4: Simplify right side
    524,744.10x = 330,406,250,764.82
  5. Step 5: Solve for x
    x = 330,406,250,764.82/524,744.10
  6. Step 6: Final answer
    x = 629,652.15

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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.