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Finding the Fourth Proportional to 771,895.96, 1,065,736.26 and 481,948.96

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Solution

The fourth proportional to 771,895.96, 1,065,736.26 and 481,948.96 is: 665,414.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,895.96 : 1,065,736.26 = 481,948.96 : x
  2. Step 2: Convert to fraction form
    771,895.96/1,065,736.26 = 481,948.96/x
  3. Step 3: Cross multiply
    771,895.96x = 1,065,736.26 × 481,948.96
  4. Step 4: Simplify right side
    771,895.96x = 513,630,482,141.29
  5. Step 5: Solve for x
    x = 513,630,482,141.29/771,895.96
  6. Step 6: Final answer
    x = 665,414.13

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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.