Home / 961,181.46-1,326,376.89-531,435.78

Finding the Fourth Proportional to 961,181.46, 1,326,376.89 and 531,435.78

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Solution

The fourth proportional to 961,181.46, 1,326,376.89 and 531,435.78 is: 733,351.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,181.46 : 1,326,376.89 = 531,435.78 : x
  2. Step 2: Convert to fraction form
    961,181.46/1,326,376.89 = 531,435.78/x
  3. Step 3: Cross multiply
    961,181.46x = 1,326,376.89 × 531,435.78
  4. Step 4: Simplify right side
    961,181.46x = 704,884,137,111.12
  5. Step 5: Solve for x
    x = 704,884,137,111.12/961,181.46
  6. Step 6: Final answer
    x = 733,351.78

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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.