Home / 445,536.36-668,402.96-221,018.92

Finding the Fourth Proportional to 445,536.36, 668,402.96 and 221,018.92

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Solution

The fourth proportional to 445,536.36, 668,402.96 and 221,018.92 is: 331,577.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,536.36 : 668,402.96 = 221,018.92 : x
  2. Step 2: Convert to fraction form
    445,536.36/668,402.96 = 221,018.92/x
  3. Step 3: Cross multiply
    445,536.36x = 668,402.96 × 221,018.92
  4. Step 4: Simplify right side
    445,536.36x = 147,729,700,344.00
  5. Step 5: Solve for x
    x = 147,729,700,344.00/445,536.36
  6. Step 6: Final answer
    x = 331,577.20

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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.