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Finding the Fourth Proportional to 507,412.15, 761,163.18 and 133,435.15

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Solution

The fourth proportional to 507,412.15, 761,163.18 and 133,435.15 is: 200,164.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,412.15 : 761,163.18 = 133,435.15 : x
  2. Step 2: Convert to fraction form
    507,412.15/761,163.18 = 133,435.15/x
  3. Step 3: Cross multiply
    507,412.15x = 761,163.18 × 133,435.15
  4. Step 4: Simplify right side
    507,412.15x = 101,565,923,097.78
  5. Step 5: Solve for x
    x = 101,565,923,097.78/507,412.15
  6. Step 6: Final answer
    x = 200,164.55

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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.