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Finding the Fourth Proportional to 570,843.09, 856,093.92 and 357,934.40

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Solution

The fourth proportional to 570,843.09, 856,093.92 and 357,934.40 is: 536,794.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,843.09 : 856,093.92 = 357,934.40 : x
  2. Step 2: Convert to fraction form
    570,843.09/856,093.92 = 357,934.40/x
  3. Step 3: Cross multiply
    570,843.09x = 856,093.92 × 357,934.40
  4. Step 4: Simplify right side
    570,843.09x = 306,425,459,318.38
  5. Step 5: Solve for x
    x = 306,425,459,318.38/570,843.09
  6. Step 6: Final answer
    x = 536,794.55

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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.