Home / 639,261.57-882,185.79-348,875.36

Finding the Fourth Proportional to 639,261.57, 882,185.79 and 348,875.36

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Solution

The fourth proportional to 639,261.57, 882,185.79 and 348,875.36 is: 481,450.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,261.57 : 882,185.79 = 348,875.36 : x
  2. Step 2: Convert to fraction form
    639,261.57/882,185.79 = 348,875.36/x
  3. Step 3: Cross multiply
    639,261.57x = 882,185.79 × 348,875.36
  4. Step 4: Simplify right side
    639,261.57x = 307,772,880,662.21
  5. Step 5: Solve for x
    x = 307,772,880,662.21/639,261.57
  6. Step 6: Final answer
    x = 481,450.62

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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.