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Finding the Fourth Proportional to 6,474,615.60, 9,711,923.40 and 2,214,404.40

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Solution

The fourth proportional to 6,474,615.60, 9,711,923.40 and 2,214,404.40 is: 3,321,606.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,474,615.60 : 9,711,923.40 = 2,214,404.40 : x
  2. Step 2: Convert to fraction form
    6,474,615.60/9,711,923.40 = 2,214,404.40/x
  3. Step 3: Cross multiply
    6,474,615.60x = 9,711,923.40 × 2,214,404.40
  4. Step 4: Simplify right side
    6,474,615.60x = 21,506,125,909,422.96
  5. Step 5: Solve for x
    x = 21,506,125,909,422.96/6,474,615.60
  6. Step 6: Final answer
    x = 3,321,606.60

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Double scale
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1.5x scale

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.