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Finding the Fourth Proportional to 554,965.74, 765,608.46 and 325,406.46

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Solution

The fourth proportional to 554,965.74, 765,608.46 and 325,406.46 is: 448,917.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,965.74 : 765,608.46 = 325,406.46 : x
  2. Step 2: Convert to fraction form
    554,965.74/765,608.46 = 325,406.46/x
  3. Step 3: Cross multiply
    554,965.74x = 765,608.46 × 325,406.46
  4. Step 4: Simplify right side
    554,965.74x = 249,133,938,714.65
  5. Step 5: Solve for x
    x = 249,133,938,714.65/554,965.74
  6. Step 6: Final answer
    x = 448,917.69

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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.