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Finding the Fourth Proportional to 545,885.22, 753,311.55 and 304,162.59

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Solution

The fourth proportional to 545,885.22, 753,311.55 and 304,162.59 is: 419,738.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,885.22 : 753,311.55 = 304,162.59 : x
  2. Step 2: Convert to fraction form
    545,885.22/753,311.55 = 304,162.59/x
  3. Step 3: Cross multiply
    545,885.22x = 753,311.55 × 304,162.59
  4. Step 4: Simplify right side
    545,885.22x = 229,129,192,124.92
  5. Step 5: Solve for x
    x = 229,129,192,124.92/545,885.22
  6. Step 6: Final answer
    x = 419,738.77

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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.