Home / 621,128.20-932,393.10-411,176.20

Finding the Fourth Proportional to 621,128.20, 932,393.10 and 411,176.20

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Solution

The fourth proportional to 621,128.20, 932,393.10 and 411,176.20 is: 617,228.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,128.20 : 932,393.10 = 411,176.20 : x
  2. Step 2: Convert to fraction form
    621,128.20/932,393.10 = 411,176.20/x
  3. Step 3: Cross multiply
    621,128.20x = 932,393.10 × 411,176.20
  4. Step 4: Simplify right side
    621,128.20x = 383,377,851,764.22
  5. Step 5: Solve for x
    x = 383,377,851,764.22/621,128.20
  6. Step 6: Final answer
    x = 617,228.22

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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.