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Finding the Fourth Proportional to 6,409,980.92, 8,845,437.69 and 3,508,816.07

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Solution

The fourth proportional to 6,409,980.92, 8,845,437.69 and 3,508,816.07 is: 4,841,982.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,409,980.92 : 8,845,437.69 = 3,508,816.07 : x
  2. Step 2: Convert to fraction form
    6,409,980.92/8,845,437.69 = 3,508,816.07/x
  3. Step 3: Cross multiply
    6,409,980.92x = 8,845,437.69 × 3,508,816.07
  4. Step 4: Simplify right side
    6,409,980.92x = 31,037,013,934,969.27
  5. Step 5: Solve for x
    x = 31,037,013,934,969.27/6,409,980.92
  6. Step 6: Final answer
    x = 4,841,982.26

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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.