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Finding the Fourth Proportional to 493,486.80, 739,063.80 and 334,856.40

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Solution

The fourth proportional to 493,486.80, 739,063.80 and 334,856.40 is: 501,493.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,486.80 : 739,063.80 = 334,856.40 : x
  2. Step 2: Convert to fraction form
    493,486.80/739,063.80 = 334,856.40/x
  3. Step 3: Cross multiply
    493,486.80x = 739,063.80 × 334,856.40
  4. Step 4: Simplify right side
    493,486.80x = 247,480,243,438.32
  5. Step 5: Solve for x
    x = 247,480,243,438.32/493,486.80
  6. Step 6: Final answer
    x = 501,493.14

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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.