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Finding the Fourth Proportional to 582,440.36, 804,015.68 and 391,564.44

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Solution

The fourth proportional to 582,440.36, 804,015.68 and 391,564.44 is: 540,525.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,440.36 : 804,015.68 = 391,564.44 : x
  2. Step 2: Convert to fraction form
    582,440.36/804,015.68 = 391,564.44/x
  3. Step 3: Cross multiply
    582,440.36x = 804,015.68 × 391,564.44
  4. Step 4: Simplify right side
    582,440.36x = 314,823,947,532.60
  5. Step 5: Solve for x
    x = 314,823,947,532.60/582,440.36
  6. Step 6: Final answer
    x = 540,525.64

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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.