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Finding the Fourth Proportional to 531,988.13, 734,252.88 and 325,291.86

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Solution

The fourth proportional to 531,988.13, 734,252.88 and 325,291.86 is: 448,969.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,988.13 : 734,252.88 = 325,291.86 : x
  2. Step 2: Convert to fraction form
    531,988.13/734,252.88 = 325,291.86/x
  3. Step 3: Cross multiply
    531,988.13x = 734,252.88 × 325,291.86
  4. Step 4: Simplify right side
    531,988.13x = 238,846,485,045.56
  5. Step 5: Solve for x
    x = 238,846,485,045.56/531,988.13
  6. Step 6: Final answer
    x = 448,969.58

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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.