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Finding the Fourth Proportional to 6,774,653.12, 9,347,477.60 and 4,019,917.68

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Solution

The fourth proportional to 6,774,653.12, 9,347,477.60 and 4,019,917.68 is: 5,546,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,774,653.12 : 9,347,477.60 = 4,019,917.68 : x
  2. Step 2: Convert to fraction form
    6,774,653.12/9,347,477.60 = 4,019,917.68/x
  3. Step 3: Cross multiply
    6,774,653.12x = 9,347,477.60 × 4,019,917.68
  4. Step 4: Simplify right side
    6,774,653.12x = 37,576,090,467,643.97
  5. Step 5: Solve for x
    x = 37,576,090,467,643.97/6,774,653.12
  6. Step 6: Final answer
    x = 5,546,570.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.