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Finding the Fourth Proportional to 587,595.20, 810,582.89 and 383,765.52

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Solution

The fourth proportional to 587,595.20, 810,582.89 and 383,765.52 is: 529,401.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,595.20 : 810,582.89 = 383,765.52 : x
  2. Step 2: Convert to fraction form
    587,595.20/810,582.89 = 383,765.52/x
  3. Step 3: Cross multiply
    587,595.20x = 810,582.89 × 383,765.52
  4. Step 4: Simplify right side
    587,595.20x = 311,073,762,365.13
  5. Step 5: Solve for x
    x = 311,073,762,365.13/587,595.20
  6. Step 6: Final answer
    x = 529,401.47

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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.