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Finding the Fourth Proportional to 285,907.36, 393,393.36 and 234,731.56

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Solution

The fourth proportional to 285,907.36, 393,393.36 and 234,731.56 is: 322,978.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,907.36 : 393,393.36 = 234,731.56 : x
  2. Step 2: Convert to fraction form
    285,907.36/393,393.36 = 234,731.56/x
  3. Step 3: Cross multiply
    285,907.36x = 393,393.36 × 234,731.56
  4. Step 4: Simplify right side
    285,907.36x = 92,341,837,086.44
  5. Step 5: Solve for x
    x = 92,341,837,086.44/285,907.36
  6. Step 6: Final answer
    x = 322,978.17

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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.