Home / 761,623.31-1,051,040.18-422,113.43

Finding the Fourth Proportional to 761,623.31, 1,051,040.18 and 422,113.43

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Solution

The fourth proportional to 761,623.31, 1,051,040.18 and 422,113.43 is: 582,516.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,623.31 : 1,051,040.18 = 422,113.43 : x
  2. Step 2: Convert to fraction form
    761,623.31/1,051,040.18 = 422,113.43/x
  3. Step 3: Cross multiply
    761,623.31x = 1,051,040.18 × 422,113.43
  4. Step 4: Simplify right side
    761,623.31x = 443,658,179,130.50
  5. Step 5: Solve for x
    x = 443,658,179,130.50/761,623.31
  6. Step 6: Final answer
    x = 582,516.54

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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.