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Finding the Fourth Proportional to 346,293, 477,891.81 and 191,243.80

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Solution

The fourth proportional to 346,293, 477,891.81 and 191,243.80 is: 263,920.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,293 : 477,891.81 = 191,243.80 : x
  2. Step 2: Convert to fraction form
    346,293/477,891.81 = 191,243.80/x
  3. Step 3: Cross multiply
    346,293x = 477,891.81 × 191,243.80
  4. Step 4: Simplify right side
    346,293x = 91,393,845,733.28
  5. Step 5: Solve for x
    x = 91,393,845,733.28/346,293
  6. Step 6: Final answer
    x = 263,920.57

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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.