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Finding the Fourth Proportional to 512,027.10, 768,040.65 and 157,038.30

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Solution

The fourth proportional to 512,027.10, 768,040.65 and 157,038.30 is: 235,557.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,027.10 : 768,040.65 = 157,038.30 : x
  2. Step 2: Convert to fraction form
    512,027.10/768,040.65 = 157,038.30/x
  3. Step 3: Cross multiply
    512,027.10x = 768,040.65 × 157,038.30
  4. Step 4: Simplify right side
    512,027.10x = 120,611,798,006.90
  5. Step 5: Solve for x
    x = 120,611,798,006.90/512,027.10
  6. Step 6: Final answer
    x = 235,557.45

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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.