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Finding the Fourth Proportional to 1,591,383, 2,196,108.54 and 875,991

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Solution

The fourth proportional to 1,591,383, 2,196,108.54 and 875,991 is: 1,208,867.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591,383 : 2,196,108.54 = 875,991 : x
  2. Step 2: Convert to fraction form
    1,591,383/2,196,108.54 = 875,991/x
  3. Step 3: Cross multiply
    1,591,383x = 2,196,108.54 × 875,991
  4. Step 4: Simplify right side
    1,591,383x = 1,923,771,316,063.14
  5. Step 5: Solve for x
    x = 1,923,771,316,063.14/1,591,383
  6. Step 6: Final answer
    x = 1,208,867.58

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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.