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Finding the Fourth Proportional to 1,301,576.98, 1,795,962.60 and 817,799.52

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Solution

The fourth proportional to 1,301,576.98, 1,795,962.60 and 817,799.52 is: 1,128,429.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301,576.98 : 1,795,962.60 = 817,799.52 : x
  2. Step 2: Convert to fraction form
    1,301,576.98/1,795,962.60 = 817,799.52/x
  3. Step 3: Cross multiply
    1,301,576.98x = 1,795,962.60 × 817,799.52
  4. Step 4: Simplify right side
    1,301,576.98x = 1,468,737,352,217.95
  5. Step 5: Solve for x
    x = 1,468,737,352,217.95/1,301,576.98
  6. Step 6: Final answer
    x = 1,128,429.11

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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.