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Finding the Fourth Proportional to 1,706,982.52, 2,355,703.62 and 981,829.48

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Solution

The fourth proportional to 1,706,982.52, 2,355,703.62 and 981,829.48 is: 1,354,963.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,706,982.52 : 2,355,703.62 = 981,829.48 : x
  2. Step 2: Convert to fraction form
    1,706,982.52/2,355,703.62 = 981,829.48/x
  3. Step 3: Cross multiply
    1,706,982.52x = 2,355,703.62 × 981,829.48
  4. Step 4: Simplify right side
    1,706,982.52x = 2,312,899,260,258.72
  5. Step 5: Solve for x
    x = 2,312,899,260,258.72/1,706,982.52
  6. Step 6: Final answer
    x = 1,354,963.65

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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.