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Finding the Fourth Proportional to 624,201.10, 936,301.65 and 519,138.70

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Solution

The fourth proportional to 624,201.10, 936,301.65 and 519,138.70 is: 778,708.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,201.10 : 936,301.65 = 519,138.70 : x
  2. Step 2: Convert to fraction form
    624,201.10/936,301.65 = 519,138.70/x
  3. Step 3: Cross multiply
    624,201.10x = 936,301.65 × 519,138.70
  4. Step 4: Simplify right side
    624,201.10x = 486,070,421,388.86
  5. Step 5: Solve for x
    x = 486,070,421,388.86/624,201.10
  6. Step 6: Final answer
    x = 778,708.05

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Similar ratio
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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.