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Finding the Fourth Proportional to 6,436,680.40, 9,036,546.80 and 6,436,680.40

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Solution

The fourth proportional to 6,436,680.40, 9,036,546.80 and 6,436,680.40 is: 9,036,546.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,436,680.40 : 9,036,546.80 = 6,436,680.40 : x
  2. Step 2: Convert to fraction form
    6,436,680.40/9,036,546.80 = 6,436,680.40/x
  3. Step 3: Cross multiply
    6,436,680.40x = 9,036,546.80 × 6,436,680.40
  4. Step 4: Simplify right side
    6,436,680.40x = 58,165,363,671,242.73
  5. Step 5: Solve for x
    x = 58,165,363,671,242.73/6,436,680.40
  6. Step 6: Final answer
    x = 9,036,546.80

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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.