Home / 2,139,080.40-3,208,620.60-1,719,176.40

Finding the Fourth Proportional to 2,139,080.40, 3,208,620.60 and 1,719,176.40

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Solution

The fourth proportional to 2,139,080.40, 3,208,620.60 and 1,719,176.40 is: 2,578,764.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,080.40 : 3,208,620.60 = 1,719,176.40 : x
  2. Step 2: Convert to fraction form
    2,139,080.40/3,208,620.60 = 1,719,176.40/x
  3. Step 3: Cross multiply
    2,139,080.40x = 3,208,620.60 × 1,719,176.40
  4. Step 4: Simplify right side
    2,139,080.40x = 5,516,184,812,073.84
  5. Step 5: Solve for x
    x = 5,516,184,812,073.84/2,139,080.40
  6. Step 6: Final answer
    x = 2,578,764.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.