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Finding the Fourth Proportional to 512,033.30, 764,156.57 and 455,283.75

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Solution

The fourth proportional to 512,033.30, 764,156.57 and 455,283.75 is: 679,463.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,033.30 : 764,156.57 = 455,283.75 : x
  2. Step 2: Convert to fraction form
    512,033.30/764,156.57 = 455,283.75/x
  3. Step 3: Cross multiply
    512,033.30x = 764,156.57 × 455,283.75
  4. Step 4: Simplify right side
    512,033.30x = 347,908,069,365.91
  5. Step 5: Solve for x
    x = 347,908,069,365.91/512,033.30
  6. Step 6: Final answer
    x = 679,463.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.