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Finding the Fourth Proportional to 2,547,968.43, 3,821,952.64 and 928,858.69

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Solution

The fourth proportional to 2,547,968.43, 3,821,952.64 and 928,858.69 is: 1,393,288.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,547,968.43 : 3,821,952.64 = 928,858.69 : x
  2. Step 2: Convert to fraction form
    2,547,968.43/3,821,952.64 = 928,858.69/x
  3. Step 3: Cross multiply
    2,547,968.43x = 3,821,952.64 × 928,858.69
  4. Step 4: Simplify right side
    2,547,968.43x = 3,550,053,908,233.27
  5. Step 5: Solve for x
    x = 3,550,053,908,233.27/2,547,968.43
  6. Step 6: Final answer
    x = 1,393,288.03

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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.