Home / 386,346.77-533,190.46-214,320.20

Finding the Fourth Proportional to 386,346.77, 533,190.46 and 214,320.20

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Solution

The fourth proportional to 386,346.77, 533,190.46 and 214,320.20 is: 295,779.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,346.77 : 533,190.46 = 214,320.20 : x
  2. Step 2: Convert to fraction form
    386,346.77/533,190.46 = 214,320.20/x
  3. Step 3: Cross multiply
    386,346.77x = 533,190.46 × 214,320.20
  4. Step 4: Simplify right side
    386,346.77x = 114,273,486,025.29
  5. Step 5: Solve for x
    x = 114,273,486,025.29/386,346.77
  6. Step 6: Final answer
    x = 295,779.58

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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.