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Finding the Fourth Proportional to 393,558.24, 543,116.64 and 214,710.24

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Solution

The fourth proportional to 393,558.24, 543,116.64 and 214,710.24 is: 296,303.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,558.24 : 543,116.64 = 214,710.24 : x
  2. Step 2: Convert to fraction form
    393,558.24/543,116.64 = 214,710.24/x
  3. Step 3: Cross multiply
    393,558.24x = 543,116.64 × 214,710.24
  4. Step 4: Simplify right side
    393,558.24x = 116,612,704,122.39
  5. Step 5: Solve for x
    x = 116,612,704,122.39/393,558.24
  6. Step 6: Final answer
    x = 296,303.55

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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.