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Finding the Fourth Proportional to 405,586.17, 559,757.59 and 235,820.30

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Solution

The fourth proportional to 405,586.17, 559,757.59 and 235,820.30 is: 325,460.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,586.17 : 559,757.59 = 235,820.30 : x
  2. Step 2: Convert to fraction form
    405,586.17/559,757.59 = 235,820.30/x
  3. Step 3: Cross multiply
    405,586.17x = 559,757.59 × 235,820.30
  4. Step 4: Simplify right side
    405,586.17x = 132,002,199,412.74
  5. Step 5: Solve for x
    x = 132,002,199,412.74/405,586.17
  6. Step 6: Final answer
    x = 325,460.31

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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.