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Finding the Fourth Proportional to 965,632.80, 1,448,794.80 and 404,839.20

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Solution

The fourth proportional to 965,632.80, 1,448,794.80 and 404,839.20 is: 607,403.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,632.80 : 1,448,794.80 = 404,839.20 : x
  2. Step 2: Convert to fraction form
    965,632.80/1,448,794.80 = 404,839.20/x
  3. Step 3: Cross multiply
    965,632.80x = 1,448,794.80 × 404,839.20
  4. Step 4: Simplify right side
    965,632.80x = 586,528,927,796.16
  5. Step 5: Solve for x
    x = 586,528,927,796.16/965,632.80
  6. Step 6: Final answer
    x = 607,403.69

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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.