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Finding the Fourth Proportional to 346,698.82, 478,435.20 and 193,738.27

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Solution

The fourth proportional to 346,698.82, 478,435.20 and 193,738.27 is: 267,353.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,698.82 : 478,435.20 = 193,738.27 : x
  2. Step 2: Convert to fraction form
    346,698.82/478,435.20 = 193,738.27/x
  3. Step 3: Cross multiply
    346,698.82x = 478,435.20 × 193,738.27
  4. Step 4: Simplify right side
    346,698.82x = 92,691,207,955.10
  5. Step 5: Solve for x
    x = 92,691,207,955.10/346,698.82
  6. Step 6: Final answer
    x = 267,353.69

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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.