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Finding the Fourth Proportional to 750,912.80, 1,036,263.12 and 411,380

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Solution

The fourth proportional to 750,912.80, 1,036,263.12 and 411,380 is: 567,706.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,912.80 : 1,036,263.12 = 411,380 : x
  2. Step 2: Convert to fraction form
    750,912.80/1,036,263.12 = 411,380/x
  3. Step 3: Cross multiply
    750,912.80x = 1,036,263.12 × 411,380
  4. Step 4: Simplify right side
    750,912.80x = 426,297,922,305.60
  5. Step 5: Solve for x
    x = 426,297,922,305.60/750,912.80
  6. Step 6: Final answer
    x = 567,706.29

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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.