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Finding the Fourth Proportional to 539,954.64, 809,931.96 and 207,297.36

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Solution

The fourth proportional to 539,954.64, 809,931.96 and 207,297.36 is: 310,946.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,954.64 : 809,931.96 = 207,297.36 : x
  2. Step 2: Convert to fraction form
    539,954.64/809,931.96 = 207,297.36/x
  3. Step 3: Cross multiply
    539,954.64x = 809,931.96 × 207,297.36
  4. Step 4: Simplify right side
    539,954.64x = 167,896,757,087.63
  5. Step 5: Solve for x
    x = 167,896,757,087.63/539,954.64
  6. Step 6: Final answer
    x = 310,946.04

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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.