Home / 1,908,980-2,632,228.08-1,219,741.28

Finding the Fourth Proportional to 1,908,980, 2,632,228.08 and 1,219,741.28

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Solution

The fourth proportional to 1,908,980, 2,632,228.08 and 1,219,741.28 is: 1,681,860.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908,980 : 2,632,228.08 = 1,219,741.28 : x
  2. Step 2: Convert to fraction form
    1,908,980/2,632,228.08 = 1,219,741.28/x
  3. Step 3: Cross multiply
    1,908,980x = 2,632,228.08 × 1,219,741.28
  4. Step 4: Simplify right side
    1,908,980x = 3,210,637,247,551.14
  5. Step 5: Solve for x
    x = 3,210,637,247,551.14/1,908,980
  6. Step 6: Final answer
    x = 1,681,860.08

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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.