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Finding the Fourth Proportional to 617,362.05, 851,792.44 and 423,828.95

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Solution

The fourth proportional to 617,362.05, 851,792.44 and 423,828.95 is: 584,769.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,362.05 : 851,792.44 = 423,828.95 : x
  2. Step 2: Convert to fraction form
    617,362.05/851,792.44 = 423,828.95/x
  3. Step 3: Cross multiply
    617,362.05x = 851,792.44 × 423,828.95
  4. Step 4: Simplify right side
    617,362.05x = 361,014,293,343.99
  5. Step 5: Solve for x
    x = 361,014,293,343.99/617,362.05
  6. Step 6: Final answer
    x = 584,769.17

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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.