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Finding the Fourth Proportional to 627,302.76, 940,959 and 153,992.22

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Solution

The fourth proportional to 627,302.76, 940,959 and 153,992.22 is: 230,989.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,302.76 : 940,959 = 153,992.22 : x
  2. Step 2: Convert to fraction form
    627,302.76/940,959 = 153,992.22/x
  3. Step 3: Cross multiply
    627,302.76x = 940,959 × 153,992.22
  4. Step 4: Simplify right side
    627,302.76x = 144,900,365,338.98
  5. Step 5: Solve for x
    x = 144,900,365,338.98/627,302.76
  6. Step 6: Final answer
    x = 230,989.52

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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.