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Finding the Fourth Proportional to 507,943.63, 762,008.73 and 414,007.12

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Solution

The fourth proportional to 507,943.63, 762,008.73 and 414,007.12 is: 621,086.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,943.63 : 762,008.73 = 414,007.12 : x
  2. Step 2: Convert to fraction form
    507,943.63/762,008.73 = 414,007.12/x
  3. Step 3: Cross multiply
    507,943.63x = 762,008.73 × 414,007.12
  4. Step 4: Simplify right side
    507,943.63x = 315,477,039,722.16
  5. Step 5: Solve for x
    x = 315,477,039,722.16/507,943.63
  6. Step 6: Final answer
    x = 621,086.71

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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.