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Finding the Fourth Proportional to 1,321,330.05, 1,853,594.55 and 1,321,330.05

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Solution

The fourth proportional to 1,321,330.05, 1,853,594.55 and 1,321,330.05 is: 1,853,594.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,330.05 : 1,853,594.55 = 1,321,330.05 : x
  2. Step 2: Convert to fraction form
    1,321,330.05/1,853,594.55 = 1,321,330.05/x
  3. Step 3: Cross multiply
    1,321,330.05x = 1,853,594.55 × 1,321,330.05
  4. Step 4: Simplify right side
    1,321,330.05x = 2,449,210,179,431.23
  5. Step 5: Solve for x
    x = 2,449,210,179,431.23/1,321,330.05
  6. Step 6: Final answer
    x = 1,853,594.55

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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.