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Finding the Fourth Proportional to 346,355.01, 477,965.30 and 193,395.78

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Solution

The fourth proportional to 346,355.01, 477,965.30 and 193,395.78 is: 266,883.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,355.01 : 477,965.30 = 193,395.78 : x
  2. Step 2: Convert to fraction form
    346,355.01/477,965.30 = 193,395.78/x
  3. Step 3: Cross multiply
    346,355.01x = 477,965.30 × 193,395.78
  4. Step 4: Simplify right side
    346,355.01x = 92,436,471,039.46
  5. Step 5: Solve for x
    x = 92,436,471,039.46/346,355.01
  6. Step 6: Final answer
    x = 266,883.60

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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.