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Finding the Fourth Proportional to 823,805.46, 1,136,265.21 and 756,041.22

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Solution

The fourth proportional to 823,805.46, 1,136,265.21 and 756,041.22 is: 1,042,798.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,805.46 : 1,136,265.21 = 756,041.22 : x
  2. Step 2: Convert to fraction form
    823,805.46/1,136,265.21 = 756,041.22/x
  3. Step 3: Cross multiply
    823,805.46x = 1,136,265.21 × 756,041.22
  4. Step 4: Simplify right side
    823,805.46x = 859,063,335,611.96
  5. Step 5: Solve for x
    x = 859,063,335,611.96/823,805.46
  6. Step 6: Final answer
    x = 1,042,798.79

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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.