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Finding the Fourth Proportional to 570,930.40, 855,812.40 and 334,151.20

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Solution

The fourth proportional to 570,930.40, 855,812.40 and 334,151.20 is: 500,885.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,930.40 : 855,812.40 = 334,151.20 : x
  2. Step 2: Convert to fraction form
    570,930.40/855,812.40 = 334,151.20/x
  3. Step 3: Cross multiply
    570,930.40x = 855,812.40 × 334,151.20
  4. Step 4: Simplify right side
    570,930.40x = 285,970,740,434.88
  5. Step 5: Solve for x
    x = 285,970,740,434.88/570,930.40
  6. Step 6: Final answer
    x = 500,885.47

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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.