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Finding the Fourth Proportional to 346,115.76, 477,454.68 and 238,738.92

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Solution

The fourth proportional to 346,115.76, 477,454.68 and 238,738.92 is: 329,332.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,115.76 : 477,454.68 = 238,738.92 : x
  2. Step 2: Convert to fraction form
    346,115.76/477,454.68 = 238,738.92/x
  3. Step 3: Cross multiply
    346,115.76x = 477,454.68 × 238,738.92
  4. Step 4: Simplify right side
    346,115.76x = 113,987,014,652.15
  5. Step 5: Solve for x
    x = 113,987,014,652.15/346,115.76
  6. Step 6: Final answer
    x = 329,332.06

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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.