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Finding the Fourth Proportional to 512,025.10, 768,037.65 and 157,036.30

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Solution

The fourth proportional to 512,025.10, 768,037.65 and 157,036.30 is: 235,554.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,025.10 : 768,037.65 = 157,036.30 : x
  2. Step 2: Convert to fraction form
    512,025.10/768,037.65 = 157,036.30/x
  3. Step 3: Cross multiply
    512,025.10x = 768,037.65 × 157,036.30
  4. Step 4: Simplify right side
    512,025.10x = 120,609,790,816.70
  5. Step 5: Solve for x
    x = 120,609,790,816.70/512,025.10
  6. Step 6: Final answer
    x = 235,554.45

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Similar ratio
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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.