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Finding the Fourth Proportional to 519,287.70, 778,858.65 and 164,337.60

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Solution

The fourth proportional to 519,287.70, 778,858.65 and 164,337.60 is: 246,483.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,287.70 : 778,858.65 = 164,337.60 : x
  2. Step 2: Convert to fraction form
    519,287.70/778,858.65 = 164,337.60/x
  3. Step 3: Cross multiply
    519,287.70x = 778,858.65 × 164,337.60
  4. Step 4: Simplify right side
    519,287.70x = 127,995,761,280.24
  5. Step 5: Solve for x
    x = 127,995,761,280.24/519,287.70
  6. Step 6: Final answer
    x = 246,483.33

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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.