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Finding the Fourth Proportional to 584,340.79, 806,391.11 and 329,715.67

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Solution

The fourth proportional to 584,340.79, 806,391.11 and 329,715.67 is: 455,008.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,340.79 : 806,391.11 = 329,715.67 : x
  2. Step 2: Convert to fraction form
    584,340.79/806,391.11 = 329,715.67/x
  3. Step 3: Cross multiply
    584,340.79x = 806,391.11 × 329,715.67
  4. Step 4: Simplify right side
    584,340.79x = 265,879,785,115.69
  5. Step 5: Solve for x
    x = 265,879,785,115.69/584,340.79
  6. Step 6: Final answer
    x = 455,008.09

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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.