Home / 588,355.20-811,929.60-320,083.20

Finding the Fourth Proportional to 588,355.20, 811,929.60 and 320,083.20

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Solution

The fourth proportional to 588,355.20, 811,929.60 and 320,083.20 is: 441,714.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,355.20 : 811,929.60 = 320,083.20 : x
  2. Step 2: Convert to fraction form
    588,355.20/811,929.60 = 320,083.20/x
  3. Step 3: Cross multiply
    588,355.20x = 811,929.60 × 320,083.20
  4. Step 4: Simplify right side
    588,355.20x = 259,885,024,542.72
  5. Step 5: Solve for x
    x = 259,885,024,542.72/588,355.20
  6. Step 6: Final answer
    x = 441,714.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.