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Finding the Fourth Proportional to 587,308.28, 810,292.66 and 329,147.50

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Solution

The fourth proportional to 587,308.28, 810,292.66 and 329,147.50 is: 454,115.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,308.28 : 810,292.66 = 329,147.50 : x
  2. Step 2: Convert to fraction form
    587,308.28/810,292.66 = 329,147.50/x
  3. Step 3: Cross multiply
    587,308.28x = 810,292.66 × 329,147.50
  4. Step 4: Simplify right side
    587,308.28x = 266,705,803,307.35
  5. Step 5: Solve for x
    x = 266,705,803,307.35/587,308.28
  6. Step 6: Final answer
    x = 454,115.52

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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.