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Finding the Fourth Proportional to 595,720.80, 893,581.20 and 343,778.40

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Solution

The fourth proportional to 595,720.80, 893,581.20 and 343,778.40 is: 515,667.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,720.80 : 893,581.20 = 343,778.40 : x
  2. Step 2: Convert to fraction form
    595,720.80/893,581.20 = 343,778.40/x
  3. Step 3: Cross multiply
    595,720.80x = 893,581.20 × 343,778.40
  4. Step 4: Simplify right side
    595,720.80x = 307,193,915,206.08
  5. Step 5: Solve for x
    x = 307,193,915,206.08/595,720.80
  6. Step 6: Final answer
    x = 515,667.60

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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.