Home / 890,935.88-1,229,670.24-528,560.96

Finding the Fourth Proportional to 890,935.88, 1,229,670.24 and 528,560.96

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Solution

The fourth proportional to 890,935.88, 1,229,670.24 and 528,560.96 is: 729,520.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,935.88 : 1,229,670.24 = 528,560.96 : x
  2. Step 2: Convert to fraction form
    890,935.88/1,229,670.24 = 528,560.96/x
  3. Step 3: Cross multiply
    890,935.88x = 1,229,670.24 × 528,560.96
  4. Step 4: Simplify right side
    890,935.88x = 649,955,682,537.83
  5. Step 5: Solve for x
    x = 649,955,682,537.83/890,935.88
  6. Step 6: Final answer
    x = 729,520.16

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Double scale
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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.