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Finding the Fourth Proportional to 346,524.62, 478,672.03 and 261,129.11

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Solution

The fourth proportional to 346,524.62, 478,672.03 and 261,129.11 is: 360,710.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,524.62 : 478,672.03 = 261,129.11 : x
  2. Step 2: Convert to fraction form
    346,524.62/478,672.03 = 261,129.11/x
  3. Step 3: Cross multiply
    346,524.62x = 478,672.03 × 261,129.11
  4. Step 4: Simplify right side
    346,524.62x = 124,995,201,175.79
  5. Step 5: Solve for x
    x = 124,995,201,175.79/346,524.62
  6. Step 6: Final answer
    x = 360,710.88

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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.