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Finding the Fourth Proportional to 556,330.55, 834,838.46 and 219,313.85

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Solution

The fourth proportional to 556,330.55, 834,838.46 and 219,313.85 is: 329,105.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,330.55 : 834,838.46 = 219,313.85 : x
  2. Step 2: Convert to fraction form
    556,330.55/834,838.46 = 219,313.85/x
  3. Step 3: Cross multiply
    556,330.55x = 834,838.46 × 219,313.85
  4. Step 4: Simplify right side
    556,330.55x = 183,091,639,426.05
  5. Step 5: Solve for x
    x = 183,091,639,426.05/556,330.55
  6. Step 6: Final answer
    x = 329,105.85

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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.