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Finding the Fourth Proportional to 7,183,398.74, 9,913,300.22 and 3,920,422.88

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Solution

The fourth proportional to 7,183,398.74, 9,913,300.22 and 3,920,422.88 is: 5,410,298.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,183,398.74 : 9,913,300.22 = 3,920,422.88 : x
  2. Step 2: Convert to fraction form
    7,183,398.74/9,913,300.22 = 3,920,422.88/x
  3. Step 3: Cross multiply
    7,183,398.74x = 9,913,300.22 × 3,920,422.88
  4. Step 4: Simplify right side
    7,183,398.74x = 38,864,329,033,381.34
  5. Step 5: Solve for x
    x = 38,864,329,033,381.34/7,183,398.74
  6. Step 6: Final answer
    x = 5,410,298.17

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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.