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Finding the Fourth Proportional to 734,437.60, 1,100,101.20 and 655,640.80

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Solution

The fourth proportional to 734,437.60, 1,100,101.20 and 655,640.80 is: 982,072.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,437.60 : 1,100,101.20 = 655,640.80 : x
  2. Step 2: Convert to fraction form
    734,437.60/1,100,101.20 = 655,640.80/x
  3. Step 3: Cross multiply
    734,437.60x = 1,100,101.20 × 655,640.80
  4. Step 4: Simplify right side
    734,437.60x = 721,271,230,848.96
  5. Step 5: Solve for x
    x = 721,271,230,848.96/734,437.60
  6. Step 6: Final answer
    x = 982,072.86

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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.