Home / 513,999.20-771,056.40-159,010.40

Finding the Fourth Proportional to 513,999.20, 771,056.40 and 159,010.40

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Solution

The fourth proportional to 513,999.20, 771,056.40 and 159,010.40 is: 238,533.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,999.20 : 771,056.40 = 159,010.40 : x
  2. Step 2: Convert to fraction form
    513,999.20/771,056.40 = 159,010.40/x
  3. Step 3: Cross multiply
    513,999.20x = 771,056.40 × 159,010.40
  4. Step 4: Simplify right side
    513,999.20x = 122,605,986,586.56
  5. Step 5: Solve for x
    x = 122,605,986,586.56/513,999.20
  6. Step 6: Final answer
    x = 238,533.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.