Home / 385,579.56-532,094.58-215,813.64

Finding the Fourth Proportional to 385,579.56, 532,094.58 and 215,813.64

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Solution

The fourth proportional to 385,579.56, 532,094.58 and 215,813.64 is: 297,819.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,579.56 : 532,094.58 = 215,813.64 : x
  2. Step 2: Convert to fraction form
    385,579.56/532,094.58 = 215,813.64/x
  3. Step 3: Cross multiply
    385,579.56x = 532,094.58 × 215,813.64
  4. Step 4: Simplify right side
    385,579.56x = 114,833,268,134.07
  5. Step 5: Solve for x
    x = 114,833,268,134.07/385,579.56
  6. Step 6: Final answer
    x = 297,819.91

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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.