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Finding the Fourth Proportional to 965,271.20, 1,448,425.20 and 404,362.40

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Solution

The fourth proportional to 965,271.20, 1,448,425.20 and 404,362.40 is: 606,760.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,271.20 : 1,448,425.20 = 404,362.40 : x
  2. Step 2: Convert to fraction form
    965,271.20/1,448,425.20 = 404,362.40/x
  3. Step 3: Cross multiply
    965,271.20x = 1,448,425.20 × 404,362.40
  4. Step 4: Simplify right side
    965,271.20x = 585,688,690,092.48
  5. Step 5: Solve for x
    x = 585,688,690,092.48/965,271.20
  6. Step 6: Final answer
    x = 606,760.76

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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.