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Finding the Fourth Proportional to 1,496,353.12, 2,064,978 and 817,289.44

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Solution

The fourth proportional to 1,496,353.12, 2,064,978 and 817,289.44 is: 1,127,865.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,496,353.12 : 2,064,978 = 817,289.44 : x
  2. Step 2: Convert to fraction form
    1,496,353.12/2,064,978 = 817,289.44/x
  3. Step 3: Cross multiply
    1,496,353.12x = 2,064,978 × 817,289.44
  4. Step 4: Simplify right side
    1,496,353.12x = 1,687,684,713,232.32
  5. Step 5: Solve for x
    x = 1,687,684,713,232.32/1,496,353.12
  6. Step 6: Final answer
    x = 1,127,865.27

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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.