Home / 579,899.22-799,998.64-376,001.79

Finding the Fourth Proportional to 579,899.22, 799,998.64 and 376,001.79

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Solution

The fourth proportional to 579,899.22, 799,998.64 and 376,001.79 is: 518,712.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,899.22 : 799,998.64 = 376,001.79 : x
  2. Step 2: Convert to fraction form
    579,899.22/799,998.64 = 376,001.79/x
  3. Step 3: Cross multiply
    579,899.22x = 799,998.64 × 376,001.79
  4. Step 4: Simplify right side
    579,899.22x = 300,800,916,697.57
  5. Step 5: Solve for x
    x = 300,800,916,697.57/579,899.22
  6. Step 6: Final answer
    x = 518,712.40

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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.