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Finding the Fourth Proportional to 509,191.92, 763,525.44 and 349,511.76

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Solution

The fourth proportional to 509,191.92, 763,525.44 and 349,511.76 is: 524,087.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,191.92 : 763,525.44 = 349,511.76 : x
  2. Step 2: Convert to fraction form
    509,191.92/763,525.44 = 349,511.76/x
  3. Step 3: Cross multiply
    509,191.92x = 763,525.44 × 349,511.76
  4. Step 4: Simplify right side
    509,191.92x = 266,861,120,339.17
  5. Step 5: Solve for x
    x = 266,861,120,339.17/509,191.92
  6. Step 6: Final answer
    x = 524,087.50

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Double scale
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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.