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Finding the Fourth Proportional to 587,331.30, 820,492.35 and 587,331.30

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Solution

The fourth proportional to 587,331.30, 820,492.35 and 587,331.30 is: 820,492.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,331.30 : 820,492.35 = 587,331.30 : x
  2. Step 2: Convert to fraction form
    587,331.30/820,492.35 = 587,331.30/x
  3. Step 3: Cross multiply
    587,331.30x = 820,492.35 × 587,331.30
  4. Step 4: Simplify right side
    587,331.30x = 481,900,838,565.56
  5. Step 5: Solve for x
    x = 481,900,838,565.56/587,331.30
  6. Step 6: Final answer
    x = 820,492.35

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.