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Finding the Fourth Proportional to 346,758.87, 478,486.53 and 193,797.12

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Solution

The fourth proportional to 346,758.87, 478,486.53 and 193,797.12 is: 267,417.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,758.87 : 478,486.53 = 193,797.12 : x
  2. Step 2: Convert to fraction form
    346,758.87/478,486.53 = 193,797.12/x
  3. Step 3: Cross multiply
    346,758.87x = 478,486.53 × 193,797.12
  4. Step 4: Simplify right side
    346,758.87x = 92,729,311,472.79
  5. Step 5: Solve for x
    x = 92,729,311,472.79/346,758.87
  6. Step 6: Final answer
    x = 267,417.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.