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Finding the Fourth Proportional to 571,559.79, 857,164.59 and 395,200.11

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Solution

The fourth proportional to 571,559.79, 857,164.59 and 395,200.11 is: 592,679.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,559.79 : 857,164.59 = 395,200.11 : x
  2. Step 2: Convert to fraction form
    571,559.79/857,164.59 = 395,200.11/x
  3. Step 3: Cross multiply
    571,559.79x = 857,164.59 × 395,200.11
  4. Step 4: Simplify right side
    571,559.79x = 338,751,540,256.11
  5. Step 5: Solve for x
    x = 338,751,540,256.11/571,559.79
  6. Step 6: Final answer
    x = 592,679.10

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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.