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Finding the Fourth Proportional to 582,548.16, 804,164.22 and 391,672.20

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Solution

The fourth proportional to 582,548.16, 804,164.22 and 391,672.20 is: 540,674.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,548.16 : 804,164.22 = 391,672.20 : x
  2. Step 2: Convert to fraction form
    582,548.16/804,164.22 = 391,672.20/x
  3. Step 3: Cross multiply
    582,548.16x = 804,164.22 × 391,672.20
  4. Step 4: Simplify right side
    582,548.16x = 314,968,769,208.68
  5. Step 5: Solve for x
    x = 314,968,769,208.68/582,548.16
  6. Step 6: Final answer
    x = 540,674.22

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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.