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Finding the Fourth Proportional to 551,409.79, 826,526.61 and 314,241.79

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Solution

The fourth proportional to 551,409.79, 826,526.61 and 314,241.79 is: 471,027.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,409.79 : 826,526.61 = 314,241.79 : x
  2. Step 2: Convert to fraction form
    551,409.79/826,526.61 = 314,241.79/x
  3. Step 3: Cross multiply
    551,409.79x = 826,526.61 × 314,241.79
  4. Step 4: Simplify right side
    551,409.79x = 259,729,201,409.03
  5. Step 5: Solve for x
    x = 259,729,201,409.03/551,409.79
  6. Step 6: Final answer
    x = 471,027.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.