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Finding the Fourth Proportional to 512,303.83, 768,492.88 and 196,760.74

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Solution

The fourth proportional to 512,303.83, 768,492.88 and 196,760.74 is: 295,155.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,303.83 : 768,492.88 = 196,760.74 : x
  2. Step 2: Convert to fraction form
    512,303.83/768,492.88 = 196,760.74/x
  3. Step 3: Cross multiply
    512,303.83x = 768,492.88 × 196,760.74
  4. Step 4: Simplify right side
    512,303.83x = 151,209,225,340.40
  5. Step 5: Solve for x
    x = 151,209,225,340.40/512,303.83
  6. Step 6: Final answer
    x = 295,155.37

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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.