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Finding the Fourth Proportional to 3,670,220.30, 5,505,330.45 and 3,670,220.30

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Solution

The fourth proportional to 3,670,220.30, 5,505,330.45 and 3,670,220.30 is: 5,505,330.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670,220.30 : 5,505,330.45 = 3,670,220.30 : x
  2. Step 2: Convert to fraction form
    3,670,220.30/5,505,330.45 = 3,670,220.30/x
  3. Step 3: Cross multiply
    3,670,220.30x = 5,505,330.45 × 3,670,220.30
  4. Step 4: Simplify right side
    3,670,220.30x = 20,205,775,575,798.13
  5. Step 5: Solve for x
    x = 20,205,775,575,798.13/3,670,220.30
  6. Step 6: Final answer
    x = 5,505,330.45

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.