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Finding the Fourth Proportional to 532,128.90, 734,241.19 and 314,373.03

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Solution

The fourth proportional to 532,128.90, 734,241.19 and 314,373.03 is: 433,777.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,128.90 : 734,241.19 = 314,373.03 : x
  2. Step 2: Convert to fraction form
    532,128.90/734,241.19 = 314,373.03/x
  3. Step 3: Cross multiply
    532,128.90x = 734,241.19 × 314,373.03
  4. Step 4: Simplify right side
    532,128.90x = 230,825,627,651.11
  5. Step 5: Solve for x
    x = 230,825,627,651.11/532,128.90
  6. Step 6: Final answer
    x = 433,777.66

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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.