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Finding the Fourth Proportional to 456,956.91, 630,608.36 and 250,243.47

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Solution

The fourth proportional to 456,956.91, 630,608.36 and 250,243.47 is: 345,340.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,956.91 : 630,608.36 = 250,243.47 : x
  2. Step 2: Convert to fraction form
    456,956.91/630,608.36 = 250,243.47/x
  3. Step 3: Cross multiply
    456,956.91x = 630,608.36 × 250,243.47
  4. Step 4: Simplify right side
    456,956.91x = 157,805,622,966.19
  5. Step 5: Solve for x
    x = 157,805,622,966.19/456,956.91
  6. Step 6: Final answer
    x = 345,340.27

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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.