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Finding the Fourth Proportional to 6,603,815.20, 9,226,445.60 and 6,603,815.20

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Solution

The fourth proportional to 6,603,815.20, 9,226,445.60 and 6,603,815.20 is: 9,226,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,603,815.20 : 9,226,445.60 = 6,603,815.20 : x
  2. Step 2: Convert to fraction form
    6,603,815.20/9,226,445.60 = 6,603,815.20/x
  3. Step 3: Cross multiply
    6,603,815.20x = 9,226,445.60 × 6,603,815.20
  4. Step 4: Simplify right side
    6,603,815.20x = 60,929,741,695,253.12
  5. Step 5: Solve for x
    x = 60,929,741,695,253.12/6,603,815.20
  6. Step 6: Final answer
    x = 9,226,445.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.