Home / 2,177,585.21-3,005,143.26-1,210,756.25

Finding the Fourth Proportional to 2,177,585.21, 3,005,143.26 and 1,210,756.25

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Solution

The fourth proportional to 2,177,585.21, 3,005,143.26 and 1,210,756.25 is: 1,670,885.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177,585.21 : 3,005,143.26 = 1,210,756.25 : x
  2. Step 2: Convert to fraction form
    2,177,585.21/3,005,143.26 = 1,210,756.25/x
  3. Step 3: Cross multiply
    2,177,585.21x = 3,005,143.26 × 1,210,756.25
  4. Step 4: Simplify right side
    2,177,585.21x = 3,638,495,984,190.37
  5. Step 5: Solve for x
    x = 3,638,495,984,190.37/2,177,585.21
  6. Step 6: Final answer
    x = 1,670,885.70

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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.