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Finding the Fourth Proportional to 662,111.20, 993,166.80 and 346,664.80

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Solution

The fourth proportional to 662,111.20, 993,166.80 and 346,664.80 is: 519,997.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,111.20 : 993,166.80 = 346,664.80 : x
  2. Step 2: Convert to fraction form
    662,111.20/993,166.80 = 346,664.80/x
  3. Step 3: Cross multiply
    662,111.20x = 993,166.80 × 346,664.80
  4. Step 4: Simplify right side
    662,111.20x = 344,295,970,088.64
  5. Step 5: Solve for x
    x = 344,295,970,088.64/662,111.20
  6. Step 6: Final answer
    x = 519,997.20

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Similar ratio
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1.5x scale

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.