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Finding the Fourth Proportional to 1,301,511.22, 1,949,724.43 and 896,631.91

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Solution

The fourth proportional to 1,301,511.22, 1,949,724.43 and 896,631.91 is: 1,343,196.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301,511.22 : 1,949,724.43 = 896,631.91 : x
  2. Step 2: Convert to fraction form
    1,301,511.22/1,949,724.43 = 896,631.91/x
  3. Step 3: Cross multiply
    1,301,511.22x = 1,949,724.43 × 896,631.91
  4. Step 4: Simplify right side
    1,301,511.22x = 1,748,185,127,654.36
  5. Step 5: Solve for x
    x = 1,748,185,127,654.36/1,301,511.22
  6. Step 6: Final answer
    x = 1,343,196.36

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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.