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Finding the Fourth Proportional to 346,439.70, 519,889.95 and 196,679.70

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Solution

The fourth proportional to 346,439.70, 519,889.95 and 196,679.70 is: 295,150.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,439.70 : 519,889.95 = 196,679.70 : x
  2. Step 2: Convert to fraction form
    346,439.70/519,889.95 = 196,679.70/x
  3. Step 3: Cross multiply
    346,439.70x = 519,889.95 × 196,679.70
  4. Step 4: Simplify right side
    346,439.70x = 102,251,799,399.02
  5. Step 5: Solve for x
    x = 102,251,799,399.02/346,439.70
  6. Step 6: Final answer
    x = 295,150.35

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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.