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Finding the Fourth Proportional to 1,100,848.20, 1,538,038.20 and 1,100,848.20

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Solution

The fourth proportional to 1,100,848.20, 1,538,038.20 and 1,100,848.20 is: 1,538,038.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,848.20 : 1,538,038.20 = 1,100,848.20 : x
  2. Step 2: Convert to fraction form
    1,100,848.20/1,538,038.20 = 1,100,848.20/x
  3. Step 3: Cross multiply
    1,100,848.20x = 1,538,038.20 × 1,100,848.20
  4. Step 4: Simplify right side
    1,100,848.20x = 1,693,146,584,001.24
  5. Step 5: Solve for x
    x = 1,693,146,584,001.24/1,100,848.20
  6. Step 6: Final answer
    x = 1,538,038.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.