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Finding the Fourth Proportional to 570,916.65, 856,388.88 and 191,842.88

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Solution

The fourth proportional to 570,916.65, 856,388.88 and 191,842.88 is: 287,768.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,916.65 : 856,388.88 = 191,842.88 : x
  2. Step 2: Convert to fraction form
    570,916.65/856,388.88 = 191,842.88/x
  3. Step 3: Cross multiply
    570,916.65x = 856,388.88 × 191,842.88
  4. Step 4: Simplify right side
    570,916.65x = 164,292,109,134.86
  5. Step 5: Solve for x
    x = 164,292,109,134.86/570,916.65
  6. Step 6: Final answer
    x = 287,768.99

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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.