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Finding the Fourth Proportional to 456,841.40, 630,431.87 and 252,892.44

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Solution

The fourth proportional to 456,841.40, 630,431.87 and 252,892.44 is: 348,986.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,841.40 : 630,431.87 = 252,892.44 : x
  2. Step 2: Convert to fraction form
    456,841.40/630,431.87 = 252,892.44/x
  3. Step 3: Cross multiply
    456,841.40x = 630,431.87 × 252,892.44
  4. Step 4: Simplify right side
    456,841.40x = 159,431,452,593.60
  5. Step 5: Solve for x
    x = 159,431,452,593.60/456,841.40
  6. Step 6: Final answer
    x = 348,986.44

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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.