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Finding the Fourth Proportional to 953,991.82, 1,431,643.82 and 393,026.32

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Solution

The fourth proportional to 953,991.82, 1,431,643.82 and 393,026.32 is: 589,809.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    953,991.82 : 1,431,643.82 = 393,026.32 : x
  2. Step 2: Convert to fraction form
    953,991.82/1,431,643.82 = 393,026.32/x
  3. Step 3: Cross multiply
    953,991.82x = 1,431,643.82 × 393,026.32
  4. Step 4: Simplify right side
    953,991.82x = 562,673,694,967.12
  5. Step 5: Solve for x
    x = 562,673,694,967.12/953,991.82
  6. Step 6: Final answer
    x = 589,809.77

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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.