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Finding the Fourth Proportional to 346,093.25, 477,608.69 and 187,117.25

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Solution

The fourth proportional to 346,093.25, 477,608.69 and 187,117.25 is: 258,221.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,093.25 : 477,608.69 = 187,117.25 : x
  2. Step 2: Convert to fraction form
    346,093.25/477,608.69 = 187,117.25/x
  3. Step 3: Cross multiply
    346,093.25x = 477,608.69 × 187,117.25
  4. Step 4: Simplify right side
    346,093.25x = 89,368,823,713.32
  5. Step 5: Solve for x
    x = 89,368,823,713.32/346,093.25
  6. Step 6: Final answer
    x = 258,221.81

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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.