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Finding the Fourth Proportional to 647,219.77, 970,829.15 and 173,905.13

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Solution

The fourth proportional to 647,219.77, 970,829.15 and 173,905.13 is: 260,857.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,219.77 : 970,829.15 = 173,905.13 : x
  2. Step 2: Convert to fraction form
    647,219.77/970,829.15 = 173,905.13/x
  3. Step 3: Cross multiply
    647,219.77x = 970,829.15 × 173,905.13
  4. Step 4: Simplify right side
    647,219.77x = 168,832,168,669.01
  5. Step 5: Solve for x
    x = 168,832,168,669.01/647,219.77
  6. Step 6: Final answer
    x = 260,857.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.