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Finding the Fourth Proportional to 922,033.20, 1,271,857.48 and 717,760.80

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Solution

The fourth proportional to 922,033.20, 1,271,857.48 and 717,760.80 is: 990,083.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,033.20 : 1,271,857.48 = 717,760.80 : x
  2. Step 2: Convert to fraction form
    922,033.20/1,271,857.48 = 717,760.80/x
  3. Step 3: Cross multiply
    922,033.20x = 1,271,857.48 × 717,760.80
  4. Step 4: Simplify right side
    922,033.20x = 912,889,442,330.78
  5. Step 5: Solve for x
    x = 912,889,442,330.78/922,033.20
  6. Step 6: Final answer
    x = 990,083.05

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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.