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Finding the Fourth Proportional to 1,407,975.11, 1,943,273.54 and 835,331.03

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Solution

The fourth proportional to 1,407,975.11, 1,943,273.54 and 835,331.03 is: 1,152,915.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,975.11 : 1,943,273.54 = 835,331.03 : x
  2. Step 2: Convert to fraction form
    1,407,975.11/1,943,273.54 = 835,331.03/x
  3. Step 3: Cross multiply
    1,407,975.11x = 1,943,273.54 × 835,331.03
  4. Step 4: Simplify right side
    1,407,975.11x = 1,623,276,687,739.95
  5. Step 5: Solve for x
    x = 1,623,276,687,739.95/1,407,975.11
  6. Step 6: Final answer
    x = 1,152,915.76

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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.