Home / 405,388.22-559,442.55-235,622.34

Finding the Fourth Proportional to 405,388.22, 559,442.55 and 235,622.34

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Solution

The fourth proportional to 405,388.22, 559,442.55 and 235,622.34 is: 325,162.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,388.22 : 559,442.55 = 235,622.34 : x
  2. Step 2: Convert to fraction form
    405,388.22/559,442.55 = 235,622.34/x
  3. Step 3: Cross multiply
    405,388.22x = 559,442.55 × 235,622.34
  4. Step 4: Simplify right side
    405,388.22x = 131,817,162,726.57
  5. Step 5: Solve for x
    x = 131,817,162,726.57/405,388.22
  6. Step 6: Final answer
    x = 325,162.79

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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.