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Finding the Fourth Proportional to 456,842.40, 630,433.24 and 252,893.44

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Solution

The fourth proportional to 456,842.40, 630,433.24 and 252,893.44 is: 348,987.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,842.40 : 630,433.24 = 252,893.44 : x
  2. Step 2: Convert to fraction form
    456,842.40/630,433.24 = 252,893.44/x
  3. Step 3: Cross multiply
    456,842.40x = 630,433.24 × 252,893.44
  4. Step 4: Simplify right side
    456,842.40x = 159,432,430,753.95
  5. Step 5: Solve for x
    x = 159,432,430,753.95/456,842.40
  6. Step 6: Final answer
    x = 348,987.81

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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.