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Finding the Fourth Proportional to 340,892.40, 510,773.52 and 207,368.72

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Solution

The fourth proportional to 340,892.40, 510,773.52 and 207,368.72 is: 310,709.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,892.40 : 510,773.52 = 207,368.72 : x
  2. Step 2: Convert to fraction form
    340,892.40/510,773.52 = 207,368.72/x
  3. Step 3: Cross multiply
    340,892.40x = 510,773.52 × 207,368.72
  4. Step 4: Simplify right side
    340,892.40x = 105,918,451,052.29
  5. Step 5: Solve for x
    x = 105,918,451,052.29/340,892.40
  6. Step 6: Final answer
    x = 310,709.34

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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.