Home / 2,885,970.70-3,980,904.32-1,905,918.76

Finding the Fourth Proportional to 2,885,970.70, 3,980,904.32 and 1,905,918.76

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Solution

The fourth proportional to 2,885,970.70, 3,980,904.32 and 1,905,918.76 is: 2,629,021.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,885,970.70 : 3,980,904.32 = 1,905,918.76 : x
  2. Step 2: Convert to fraction form
    2,885,970.70/3,980,904.32 = 1,905,918.76/x
  3. Step 3: Cross multiply
    2,885,970.70x = 3,980,904.32 × 1,905,918.76
  4. Step 4: Simplify right side
    2,885,970.70x = 7,587,280,225,253.04
  5. Step 5: Solve for x
    x = 7,587,280,225,253.04/2,885,970.70
  6. Step 6: Final answer
    x = 2,629,021.92

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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.