Home / 385,025.60-531,336.51-215,259.73

Finding the Fourth Proportional to 385,025.60, 531,336.51 and 215,259.73

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Solution

The fourth proportional to 385,025.60, 531,336.51 and 215,259.73 is: 297,059.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,025.60 : 531,336.51 = 215,259.73 : x
  2. Step 2: Convert to fraction form
    385,025.60/531,336.51 = 215,259.73/x
  3. Step 3: Cross multiply
    385,025.60x = 531,336.51 × 215,259.73
  4. Step 4: Simplify right side
    385,025.60x = 114,375,352,353.40
  5. Step 5: Solve for x
    x = 114,375,352,353.40/385,025.60
  6. Step 6: Final answer
    x = 297,059.08

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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.