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Finding the Fourth Proportional to 346,503.80, 519,366.90 and 196,815.80

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Solution

The fourth proportional to 346,503.80, 519,366.90 and 196,815.80 is: 295,002.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,503.80 : 519,366.90 = 196,815.80 : x
  2. Step 2: Convert to fraction form
    346,503.80/519,366.90 = 196,815.80/x
  3. Step 3: Cross multiply
    346,503.80x = 519,366.90 × 196,815.80
  4. Step 4: Simplify right side
    346,503.80x = 102,219,611,917.02
  5. Step 5: Solve for x
    x = 102,219,611,917.02/346,503.80
  6. Step 6: Final answer
    x = 295,002.86

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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.