Home / 456,815.11-630,397.21-252,861.66

Finding the Fourth Proportional to 456,815.11, 630,397.21 and 252,861.66

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Solution

The fourth proportional to 456,815.11, 630,397.21 and 252,861.66 is: 348,944.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,815.11 : 630,397.21 = 252,861.66 : x
  2. Step 2: Convert to fraction form
    456,815.11/630,397.21 = 252,861.66/x
  3. Step 3: Cross multiply
    456,815.11x = 630,397.21 × 252,861.66
  4. Step 4: Simplify right side
    456,815.11x = 159,403,284,979.97
  5. Step 5: Solve for x
    x = 159,403,284,979.97/456,815.11
  6. Step 6: Final answer
    x = 348,944.86

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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.