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Finding the Fourth Proportional to 346,687.65, 478,419.77 and 193,727.10

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Solution

The fourth proportional to 346,687.65, 478,419.77 and 193,727.10 is: 267,338.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,687.65 : 478,419.77 = 193,727.10 : x
  2. Step 2: Convert to fraction form
    346,687.65/478,419.77 = 193,727.10/x
  3. Step 3: Cross multiply
    346,687.65x = 478,419.77 × 193,727.10
  4. Step 4: Simplify right side
    346,687.65x = 92,682,875,813.44
  5. Step 5: Solve for x
    x = 92,682,875,813.44/346,687.65
  6. Step 6: Final answer
    x = 267,338.27

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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.