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Finding the Fourth Proportional to 965,659.40, 1,448,544.48 and 255,669

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Solution

The fourth proportional to 965,659.40, 1,448,544.48 and 255,669 is: 383,518.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,659.40 : 1,448,544.48 = 255,669 : x
  2. Step 2: Convert to fraction form
    965,659.40/1,448,544.48 = 255,669/x
  3. Step 3: Cross multiply
    965,659.40x = 1,448,544.48 × 255,669
  4. Step 4: Simplify right side
    965,659.40x = 370,347,918,657.12
  5. Step 5: Solve for x
    x = 370,347,918,657.12/965,659.40
  6. Step 6: Final answer
    x = 383,518.16

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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.