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Finding the Fourth Proportional to 531,989.13, 734,254.26 and 325,292.86

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Solution

The fourth proportional to 531,989.13, 734,254.26 and 325,292.86 is: 448,970.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,989.13 : 734,254.26 = 325,292.86 : x
  2. Step 2: Convert to fraction form
    531,989.13/734,254.26 = 325,292.86/x
  3. Step 3: Cross multiply
    531,989.13x = 734,254.26 × 325,292.86
  4. Step 4: Simplify right side
    531,989.13x = 238,847,668,202.58
  5. Step 5: Solve for x
    x = 238,847,668,202.58/531,989.13
  6. Step 6: Final answer
    x = 448,970.96

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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.