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Finding the Fourth Proportional to 456,769.55, 630,325.90 and 252,820.87

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Solution

The fourth proportional to 456,769.55, 630,325.90 and 252,820.87 is: 348,883.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,769.55 : 630,325.90 = 252,820.87 : x
  2. Step 2: Convert to fraction form
    456,769.55/630,325.90 = 252,820.87/x
  3. Step 3: Cross multiply
    456,769.55x = 630,325.90 × 252,820.87
  4. Step 4: Simplify right side
    456,769.55x = 159,359,542,421.53
  5. Step 5: Solve for x
    x = 159,359,542,421.53/456,769.55
  6. Step 6: Final answer
    x = 348,883.90

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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.