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Finding the Fourth Proportional to 766,507.62, 1,149,900.03 and 316,984.44

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Solution

The fourth proportional to 766,507.62, 1,149,900.03 and 316,984.44 is: 475,533.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,507.62 : 1,149,900.03 = 316,984.44 : x
  2. Step 2: Convert to fraction form
    766,507.62/1,149,900.03 = 316,984.44/x
  3. Step 3: Cross multiply
    766,507.62x = 1,149,900.03 × 316,984.44
  4. Step 4: Simplify right side
    766,507.62x = 364,500,417,065.53
  5. Step 5: Solve for x
    x = 364,500,417,065.53/766,507.62
  6. Step 6: Final answer
    x = 475,533.98

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Double scale
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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.