Home / 786,891.16-1,085,909.86-447,359.42

Finding the Fourth Proportional to 786,891.16, 1,085,909.86 and 447,359.42

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Solution

The fourth proportional to 786,891.16, 1,085,909.86 and 447,359.42 is: 617,356.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,891.16 : 1,085,909.86 = 447,359.42 : x
  2. Step 2: Convert to fraction form
    786,891.16/1,085,909.86 = 447,359.42/x
  3. Step 3: Cross multiply
    786,891.16x = 1,085,909.86 × 447,359.42
  4. Step 4: Simplify right side
    786,891.16x = 485,792,005,141.88
  5. Step 5: Solve for x
    x = 485,792,005,141.88/786,891.16
  6. Step 6: Final answer
    x = 617,356.03

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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.