Home / 1,681,147.70-2,319,981.18-917,201.34

Finding the Fourth Proportional to 1,681,147.70, 2,319,981.18 and 917,201.34

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Solution

The fourth proportional to 1,681,147.70, 2,319,981.18 and 917,201.34 is: 1,265,736.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,147.70 : 2,319,981.18 = 917,201.34 : x
  2. Step 2: Convert to fraction form
    1,681,147.70/2,319,981.18 = 917,201.34/x
  3. Step 3: Cross multiply
    1,681,147.70x = 2,319,981.18 × 917,201.34
  4. Step 4: Simplify right side
    1,681,147.70x = 2,127,889,847,070.78
  5. Step 5: Solve for x
    x = 2,127,889,847,070.78/1,681,147.70
  6. Step 6: Final answer
    x = 1,265,736.41

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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.