Home / 728,810.56-1,005,760.08-406,541.44

Finding the Fourth Proportional to 728,810.56, 1,005,760.08 and 406,541.44

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Solution

The fourth proportional to 728,810.56, 1,005,760.08 and 406,541.44 is: 561,028.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,810.56 : 1,005,760.08 = 406,541.44 : x
  2. Step 2: Convert to fraction form
    728,810.56/1,005,760.08 = 406,541.44/x
  3. Step 3: Cross multiply
    728,810.56x = 1,005,760.08 × 406,541.44
  4. Step 4: Simplify right side
    728,810.56x = 408,883,151,217.72
  5. Step 5: Solve for x
    x = 408,883,151,217.72/728,810.56
  6. Step 6: Final answer
    x = 561,028.03

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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.