Home / 1,389,437.88-1,917,424.27-753,533.88

Finding the Fourth Proportional to 1,389,437.88, 1,917,424.27 and 753,533.88

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Solution

The fourth proportional to 1,389,437.88, 1,917,424.27 and 753,533.88 is: 1,039,876.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,437.88 : 1,917,424.27 = 753,533.88 : x
  2. Step 2: Convert to fraction form
    1,389,437.88/1,917,424.27 = 753,533.88/x
  3. Step 3: Cross multiply
    1,389,437.88x = 1,917,424.27 × 753,533.88
  4. Step 4: Simplify right side
    1,389,437.88x = 1,444,844,140,192.15
  5. Step 5: Solve for x
    x = 1,444,844,140,192.15/1,389,437.88
  6. Step 6: Final answer
    x = 1,039,876.75

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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.