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Finding the Fourth Proportional to 856,662.60, 1,182,202.56 and 474,697.56

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Solution

The fourth proportional to 856,662.60, 1,182,202.56 and 474,697.56 is: 655,087.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,662.60 : 1,182,202.56 = 474,697.56 : x
  2. Step 2: Convert to fraction form
    856,662.60/1,182,202.56 = 474,697.56/x
  3. Step 3: Cross multiply
    856,662.60x = 1,182,202.56 × 474,697.56
  4. Step 4: Simplify right side
    856,662.60x = 561,188,670,657.75
  5. Step 5: Solve for x
    x = 561,188,670,657.75/856,662.60
  6. Step 6: Final answer
    x = 655,087.16

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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.