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Finding the Fourth Proportional to 346,687.60, 519,772.20 and 146,844.40

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Solution

The fourth proportional to 346,687.60, 519,772.20 and 146,844.40 is: 220,156.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,687.60 : 519,772.20 = 146,844.40 : x
  2. Step 2: Convert to fraction form
    346,687.60/519,772.20 = 146,844.40/x
  3. Step 3: Cross multiply
    346,687.60x = 519,772.20 × 146,844.40
  4. Step 4: Simplify right side
    346,687.60x = 76,325,636,845.68
  5. Step 5: Solve for x
    x = 76,325,636,845.68/346,687.60
  6. Step 6: Final answer
    x = 220,156.81

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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.