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Finding the Fourth Proportional to 1,864,890.63, 2,799,953.06 and 954,723.20

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Solution

The fourth proportional to 1,864,890.63, 2,799,953.06 and 954,723.20 is: 1,433,424.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864,890.63 : 2,799,953.06 = 954,723.20 : x
  2. Step 2: Convert to fraction form
    1,864,890.63/2,799,953.06 = 954,723.20/x
  3. Step 3: Cross multiply
    1,864,890.63x = 2,799,953.06 × 954,723.20
  4. Step 4: Simplify right side
    1,864,890.63x = 2,673,180,126,519.61
  5. Step 5: Solve for x
    x = 2,673,180,126,519.61/1,864,890.63
  6. Step 6: Final answer
    x = 1,433,424.61

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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.