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Finding the Fourth Proportional to 554,760.78, 765,591.58 and 325,286.16

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Solution

The fourth proportional to 554,760.78, 765,591.58 and 325,286.16 is: 448,907.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,760.78 : 765,591.58 = 325,286.16 : x
  2. Step 2: Convert to fraction form
    554,760.78/765,591.58 = 325,286.16/x
  3. Step 3: Cross multiply
    554,760.78x = 765,591.58 × 325,286.16
  4. Step 4: Simplify right side
    554,760.78x = 249,036,345,186.53
  5. Step 5: Solve for x
    x = 249,036,345,186.53/554,760.78
  6. Step 6: Final answer
    x = 448,907.63

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1.5x scale

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.