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Finding the Fourth Proportional to 456,957.62, 630,621.23 and 253,008.55

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Solution

The fourth proportional to 456,957.62, 630,621.23 and 253,008.55 is: 349,162.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,957.62 : 630,621.23 = 253,008.55 : x
  2. Step 2: Convert to fraction form
    456,957.62/630,621.23 = 253,008.55/x
  3. Step 3: Cross multiply
    456,957.62x = 630,621.23 × 253,008.55
  4. Step 4: Simplify right side
    456,957.62x = 159,552,561,424.96
  5. Step 5: Solve for x
    x = 159,552,561,424.96/456,957.62
  6. Step 6: Final answer
    x = 349,162.71

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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.