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Finding the Fourth Proportional to 611,019.92, 916,519.80 and 251,117.84

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Solution

The fourth proportional to 611,019.92, 916,519.80 and 251,117.84 is: 376,672.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,019.92 : 916,519.80 = 251,117.84 : x
  2. Step 2: Convert to fraction form
    611,019.92/916,519.80 = 251,117.84/x
  3. Step 3: Cross multiply
    611,019.92x = 916,519.80 × 251,117.84
  4. Step 4: Simplify right side
    611,019.92x = 230,154,472,493.23
  5. Step 5: Solve for x
    x = 230,154,472,493.23/611,019.92
  6. Step 6: Final answer
    x = 376,672.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.