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Finding the Fourth Proportional to 471,322.44, 706,983.66 and 388,041.48

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Solution

The fourth proportional to 471,322.44, 706,983.66 and 388,041.48 is: 582,062.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,322.44 : 706,983.66 = 388,041.48 : x
  2. Step 2: Convert to fraction form
    471,322.44/706,983.66 = 388,041.48/x
  3. Step 3: Cross multiply
    471,322.44x = 706,983.66 × 388,041.48
  4. Step 4: Simplify right side
    471,322.44x = 274,338,985,762.22
  5. Step 5: Solve for x
    x = 274,338,985,762.22/471,322.44
  6. Step 6: Final answer
    x = 582,062.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.