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Finding the Fourth Proportional to 481,031.25, 663,777.93 and 325,666.51

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Solution

The fourth proportional to 481,031.25, 663,777.93 and 325,666.51 is: 449,389.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,031.25 : 663,777.93 = 325,666.51 : x
  2. Step 2: Convert to fraction form
    481,031.25/663,777.93 = 325,666.51/x
  3. Step 3: Cross multiply
    481,031.25x = 663,777.93 × 325,666.51
  4. Step 4: Simplify right side
    481,031.25x = 216,170,241,878.12
  5. Step 5: Solve for x
    x = 216,170,241,878.12/481,031.25
  6. Step 6: Final answer
    x = 449,389.19

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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.