Home / 286,723.19-395,688.17-157,671.56

Finding the Fourth Proportional to 286,723.19, 395,688.17 and 157,671.56

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Solution

The fourth proportional to 286,723.19, 395,688.17 and 157,671.56 is: 217,592.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,723.19 : 395,688.17 = 157,671.56 : x
  2. Step 2: Convert to fraction form
    286,723.19/395,688.17 = 157,671.56/x
  3. Step 3: Cross multiply
    286,723.19x = 395,688.17 × 157,671.56
  4. Step 4: Simplify right side
    286,723.19x = 62,388,769,059.00
  5. Step 5: Solve for x
    x = 62,388,769,059.00/286,723.19
  6. Step 6: Final answer
    x = 217,592.34

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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.