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Finding the Fourth Proportional to 1,671,747.66, 2,306,978.82 and 983,493.90

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Solution

The fourth proportional to 1,671,747.66, 2,306,978.82 and 983,493.90 is: 1,357,202.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,671,747.66 : 2,306,978.82 = 983,493.90 : x
  2. Step 2: Convert to fraction form
    1,671,747.66/2,306,978.82 = 983,493.90/x
  3. Step 3: Cross multiply
    1,671,747.66x = 2,306,978.82 × 983,493.90
  4. Step 4: Simplify right side
    1,671,747.66x = 2,268,899,596,899.20
  5. Step 5: Solve for x
    x = 2,268,899,596,899.20/1,671,747.66
  6. Step 6: Final answer
    x = 1,357,202.20

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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.