Home / 621,899.36-932,795.27-378,677.62

Finding the Fourth Proportional to 621,899.36, 932,795.27 and 378,677.62

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Solution

The fourth proportional to 621,899.36, 932,795.27 and 378,677.62 is: 567,983.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,899.36 : 932,795.27 = 378,677.62 : x
  2. Step 2: Convert to fraction form
    621,899.36/932,795.27 = 378,677.62/x
  3. Step 3: Cross multiply
    621,899.36x = 932,795.27 × 378,677.62
  4. Step 4: Simplify right side
    621,899.36x = 353,228,692,790.86
  5. Step 5: Solve for x
    x = 353,228,692,790.86/621,899.36
  6. Step 6: Final answer
    x = 567,983.69

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Double scale
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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.