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Finding the Fourth Proportional to 1,376,731.22, 1,899,226.86 and 893,447.96

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Solution

The fourth proportional to 1,376,731.22, 1,899,226.86 and 893,447.96 is: 1,232,528.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,731.22 : 1,899,226.86 = 893,447.96 : x
  2. Step 2: Convert to fraction form
    1,376,731.22/1,899,226.86 = 893,447.96/x
  3. Step 3: Cross multiply
    1,376,731.22x = 1,899,226.86 × 893,447.96
  4. Step 4: Simplify right side
    1,376,731.22x = 1,696,860,363,644.21
  5. Step 5: Solve for x
    x = 1,696,860,363,644.21/1,376,731.22
  6. Step 6: Final answer
    x = 1,232,528.43

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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.