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Finding the Fourth Proportional to 511,405.08, 767,138.37 and 156,422.17

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Solution

The fourth proportional to 511,405.08, 767,138.37 and 156,422.17 is: 234,642.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,405.08 : 767,138.37 = 156,422.17 : x
  2. Step 2: Convert to fraction form
    511,405.08/767,138.37 = 156,422.17/x
  3. Step 3: Cross multiply
    511,405.08x = 767,138.37 × 156,422.17
  4. Step 4: Simplify right side
    511,405.08x = 119,997,451,216.26
  5. Step 5: Solve for x
    x = 119,997,451,216.26/511,405.08
  6. Step 6: Final answer
    x = 234,642.67

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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.