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Finding the Fourth Proportional to 512,455.39, 767,839.63 and 175,311.74

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Solution

The fourth proportional to 512,455.39, 767,839.63 and 175,311.74 is: 262,679.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,455.39 : 767,839.63 = 175,311.74 : x
  2. Step 2: Convert to fraction form
    512,455.39/767,839.63 = 175,311.74/x
  3. Step 3: Cross multiply
    512,455.39x = 767,839.63 × 175,311.74
  4. Step 4: Simplify right side
    512,455.39x = 134,611,301,576.26
  5. Step 5: Solve for x
    x = 134,611,301,576.26/512,455.39
  6. Step 6: Final answer
    x = 262,679.06

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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.