Home / 659,856.36-989,784.18-239,131.56

Finding the Fourth Proportional to 659,856.36, 989,784.18 and 239,131.56

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Solution

The fourth proportional to 659,856.36, 989,784.18 and 239,131.56 is: 358,697.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,856.36 : 989,784.18 = 239,131.56 : x
  2. Step 2: Convert to fraction form
    659,856.36/989,784.18 = 239,131.56/x
  3. Step 3: Cross multiply
    659,856.36x = 989,784.18 × 239,131.56
  4. Step 4: Simplify right side
    659,856.36x = 236,688,635,026.72
  5. Step 5: Solve for x
    x = 236,688,635,026.72/659,856.36
  6. Step 6: Final answer
    x = 358,697.21

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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.