Home / 809,420.64-1,116,971.15-446,836.70

Finding the Fourth Proportional to 809,420.64, 1,116,971.15 and 446,836.70

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Solution

The fourth proportional to 809,420.64, 1,116,971.15 and 446,836.70 is: 616,618.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,420.64 : 1,116,971.15 = 446,836.70 : x
  2. Step 2: Convert to fraction form
    809,420.64/1,116,971.15 = 446,836.70/x
  3. Step 3: Cross multiply
    809,420.64x = 1,116,971.15 × 446,836.70
  4. Step 4: Simplify right side
    809,420.64x = 499,103,694,842.17
  5. Step 5: Solve for x
    x = 499,103,694,842.17/809,420.64
  6. Step 6: Final answer
    x = 616,618.44

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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.