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Finding the Fourth Proportional to 617,084.54, 851,565.39 and 348,812.54

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Solution

The fourth proportional to 617,084.54, 851,565.39 and 348,812.54 is: 481,354.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,084.54 : 851,565.39 = 348,812.54 : x
  2. Step 2: Convert to fraction form
    617,084.54/851,565.39 = 348,812.54/x
  3. Step 3: Cross multiply
    617,084.54x = 851,565.39 × 348,812.54
  4. Step 4: Simplify right side
    617,084.54x = 297,036,686,661.99
  5. Step 5: Solve for x
    x = 297,036,686,661.99/617,084.54
  6. Step 6: Final answer
    x = 481,354.93

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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.