Home / 501,906.82-749,249.96-430,055.76

Finding the Fourth Proportional to 501,906.82, 749,249.96 and 430,055.76

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Solution

The fourth proportional to 501,906.82, 749,249.96 and 430,055.76 is: 641,990.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,906.82 : 749,249.96 = 430,055.76 : x
  2. Step 2: Convert to fraction form
    501,906.82/749,249.96 = 430,055.76/x
  3. Step 3: Cross multiply
    501,906.82x = 749,249.96 × 430,055.76
  4. Step 4: Simplify right side
    501,906.82x = 322,219,260,977.77
  5. Step 5: Solve for x
    x = 322,219,260,977.77/501,906.82
  6. Step 6: Final answer
    x = 641,990.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.