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Finding the Fourth Proportional to 356,792.30, 492,396.14 and 235,721.20

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Solution

The fourth proportional to 356,792.30, 492,396.14 and 235,721.20 is: 325,310.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,792.30 : 492,396.14 = 235,721.20 : x
  2. Step 2: Convert to fraction form
    356,792.30/492,396.14 = 235,721.20/x
  3. Step 3: Cross multiply
    356,792.30x = 492,396.14 × 235,721.20
  4. Step 4: Simplify right side
    356,792.30x = 116,068,205,355.58
  5. Step 5: Solve for x
    x = 116,068,205,355.58/356,792.30
  6. Step 6: Final answer
    x = 325,310.29

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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.