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Finding the Fourth Proportional to 346,610.60, 520,088.70 and 196,965.80

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Solution

The fourth proportional to 346,610.60, 520,088.70 and 196,965.80 is: 295,546.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,610.60 : 520,088.70 = 196,965.80 : x
  2. Step 2: Convert to fraction form
    346,610.60/520,088.70 = 196,965.80/x
  3. Step 3: Cross multiply
    346,610.60x = 520,088.70 × 196,965.80
  4. Step 4: Simplify right side
    346,610.60x = 102,439,686,866.46
  5. Step 5: Solve for x
    x = 102,439,686,866.46/346,610.60
  6. Step 6: Final answer
    x = 295,546.90

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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.