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Finding the Fourth Proportional to 510,590.08, 765,913.91 and 155,615.68

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Solution

The fourth proportional to 510,590.08, 765,913.91 and 155,615.68 is: 233,432.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,590.08 : 765,913.91 = 155,615.68 : x
  2. Step 2: Convert to fraction form
    510,590.08/765,913.91 = 155,615.68/x
  3. Step 3: Cross multiply
    510,590.08x = 765,913.91 × 155,615.68
  4. Step 4: Simplify right side
    510,590.08x = 119,188,213,926.11
  5. Step 5: Solve for x
    x = 119,188,213,926.11/510,590.08
  6. Step 6: Final answer
    x = 233,432.29

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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.