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Finding the Fourth Proportional to 393,767.53, 543,384.75 and 240,748.61

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Solution

The fourth proportional to 393,767.53, 543,384.75 and 240,748.61 is: 332,224.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,767.53 : 543,384.75 = 240,748.61 : x
  2. Step 2: Convert to fraction form
    393,767.53/543,384.75 = 240,748.61/x
  3. Step 3: Cross multiply
    393,767.53x = 543,384.75 × 240,748.61
  4. Step 4: Simplify right side
    393,767.53x = 130,819,121,443.58
  5. Step 5: Solve for x
    x = 130,819,121,443.58/393,767.53
  6. Step 6: Final answer
    x = 332,224.25

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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.