Home / 817,664.20-1,226,058.90-343,814.20

Finding the Fourth Proportional to 817,664.20, 1,226,058.90 and 343,814.20

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Solution

The fourth proportional to 817,664.20, 1,226,058.90 and 343,814.20 is: 515,537.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,664.20 : 1,226,058.90 = 343,814.20 : x
  2. Step 2: Convert to fraction form
    817,664.20/1,226,058.90 = 343,814.20/x
  3. Step 3: Cross multiply
    817,664.20x = 1,226,058.90 × 343,814.20
  4. Step 4: Simplify right side
    817,664.20x = 421,536,459,856.38
  5. Step 5: Solve for x
    x = 421,536,459,856.38/817,664.20
  6. Step 6: Final answer
    x = 515,537.38

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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.