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Finding the Fourth Proportional to 965,708.40, 1,448,303.40 and 404,626.80

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Solution

The fourth proportional to 965,708.40, 1,448,303.40 and 404,626.80 is: 606,831.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,708.40 : 1,448,303.40 = 404,626.80 : x
  2. Step 2: Convert to fraction form
    965,708.40/1,448,303.40 = 404,626.80/x
  3. Step 3: Cross multiply
    965,708.40x = 1,448,303.40 × 404,626.80
  4. Step 4: Simplify right side
    965,708.40x = 586,022,370,171.12
  5. Step 5: Solve for x
    x = 586,022,370,171.12/965,708.40
  6. Step 6: Final answer
    x = 606,831.60

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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.