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Finding the Fourth Proportional to 587,783.19, 811,149.51 and 342,761.13

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Solution

The fourth proportional to 587,783.19, 811,149.51 and 342,761.13 is: 473,015.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,783.19 : 811,149.51 = 342,761.13 : x
  2. Step 2: Convert to fraction form
    587,783.19/811,149.51 = 342,761.13/x
  3. Step 3: Cross multiply
    587,783.19x = 811,149.51 × 342,761.13
  4. Step 4: Simplify right side
    587,783.19x = 278,030,522,646.55
  5. Step 5: Solve for x
    x = 278,030,522,646.55/587,783.19
  6. Step 6: Final answer
    x = 473,015.44

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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.