Home / 1,403,009.82-1,934,862.36-919,399.32

Finding the Fourth Proportional to 1,403,009.82, 1,934,862.36 and 919,399.32

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Solution

The fourth proportional to 1,403,009.82, 1,934,862.36 and 919,399.32 is: 1,267,924.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403,009.82 : 1,934,862.36 = 919,399.32 : x
  2. Step 2: Convert to fraction form
    1,403,009.82/1,934,862.36 = 919,399.32/x
  3. Step 3: Cross multiply
    1,403,009.82x = 1,934,862.36 × 919,399.32
  4. Step 4: Simplify right side
    1,403,009.82x = 1,778,911,138,077.60
  5. Step 5: Solve for x
    x = 1,778,911,138,077.60/1,403,009.82
  6. Step 6: Final answer
    x = 1,267,924.94

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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.