Home / 919,862.56-1,379,794.32-413,832.64

Finding the Fourth Proportional to 919,862.56, 1,379,794.32 and 413,832.64

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Solution

The fourth proportional to 919,862.56, 1,379,794.32 and 413,832.64 is: 620,749.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,862.56 : 1,379,794.32 = 413,832.64 : x
  2. Step 2: Convert to fraction form
    919,862.56/1,379,794.32 = 413,832.64/x
  3. Step 3: Cross multiply
    919,862.56x = 1,379,794.32 × 413,832.64
  4. Step 4: Simplify right side
    919,862.56x = 571,003,926,102.61
  5. Step 5: Solve for x
    x = 571,003,926,102.61/919,862.56
  6. Step 6: Final answer
    x = 620,749.18

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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.