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Finding the Fourth Proportional to 590,090.64, 814,323.60 and 321,818.64

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Solution

The fourth proportional to 590,090.64, 814,323.60 and 321,818.64 is: 444,108.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,090.64 : 814,323.60 = 321,818.64 : x
  2. Step 2: Convert to fraction form
    590,090.64/814,323.60 = 321,818.64/x
  3. Step 3: Cross multiply
    590,090.64x = 814,323.60 × 321,818.64
  4. Step 4: Simplify right side
    590,090.64x = 262,064,513,471.90
  5. Step 5: Solve for x
    x = 262,064,513,471.90/590,090.64
  6. Step 6: Final answer
    x = 444,108.91

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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.