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Finding the Fourth Proportional to 493,377.80, 740,412.30 and 316,315.40

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Solution

The fourth proportional to 493,377.80, 740,412.30 and 316,315.40 is: 474,694.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,377.80 : 740,412.30 = 316,315.40 : x
  2. Step 2: Convert to fraction form
    493,377.80/740,412.30 = 316,315.40/x
  3. Step 3: Cross multiply
    493,377.80x = 740,412.30 × 316,315.40
  4. Step 4: Simplify right side
    493,377.80x = 234,203,812,839.42
  5. Step 5: Solve for x
    x = 234,203,812,839.42/493,377.80
  6. Step 6: Final answer
    x = 474,694.67

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