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Finding the Fourth Proportional to 617,084.70, 851,560.47 and 348,812.70

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Solution

The fourth proportional to 617,084.70, 851,560.47 and 348,812.70 is: 481,352.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,084.70 : 851,560.47 = 348,812.70 : x
  2. Step 2: Convert to fraction form
    617,084.70/851,560.47 = 348,812.70/x
  3. Step 3: Cross multiply
    617,084.70x = 851,560.47 × 348,812.70
  4. Step 4: Simplify right side
    617,084.70x = 297,035,106,753.97
  5. Step 5: Solve for x
    x = 297,035,106,753.97/617,084.70
  6. Step 6: Final answer
    x = 481,352.25

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1.5x scale

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.