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Finding the Fourth Proportional to 569,654.40, 786,107.52 and 314,996.88

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Solution

The fourth proportional to 569,654.40, 786,107.52 and 314,996.88 is: 434,687.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,654.40 : 786,107.52 = 314,996.88 : x
  2. Step 2: Convert to fraction form
    569,654.40/786,107.52 = 314,996.88/x
  3. Step 3: Cross multiply
    569,654.40x = 786,107.52 × 314,996.88
  4. Step 4: Simplify right side
    569,654.40x = 247,621,416,144.54
  5. Step 5: Solve for x
    x = 247,621,416,144.54/569,654.40
  6. Step 6: Final answer
    x = 434,687.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.