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Finding the Fourth Proportional to 835,368.80, 1,253,053.20 and 481,474.40

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Solution

The fourth proportional to 835,368.80, 1,253,053.20 and 481,474.40 is: 722,211.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,368.80 : 1,253,053.20 = 481,474.40 : x
  2. Step 2: Convert to fraction form
    835,368.80/1,253,053.20 = 481,474.40/x
  3. Step 3: Cross multiply
    835,368.80x = 1,253,053.20 × 481,474.40
  4. Step 4: Simplify right side
    835,368.80x = 603,313,037,638.08
  5. Step 5: Solve for x
    x = 603,313,037,638.08/835,368.80
  6. Step 6: Final answer
    x = 722,211.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.