Home / 2,639,897.40-3,959,846.10-866,969.40

Finding the Fourth Proportional to 2,639,897.40, 3,959,846.10 and 866,969.40

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Solution

The fourth proportional to 2,639,897.40, 3,959,846.10 and 866,969.40 is: 1,300,454.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639,897.40 : 3,959,846.10 = 866,969.40 : x
  2. Step 2: Convert to fraction form
    2,639,897.40/3,959,846.10 = 866,969.40/x
  3. Step 3: Cross multiply
    2,639,897.40x = 3,959,846.10 × 866,969.40
  4. Step 4: Simplify right side
    2,639,897.40x = 3,433,065,397,409.34
  5. Step 5: Solve for x
    x = 3,433,065,397,409.34/2,639,897.40
  6. Step 6: Final answer
    x = 1,300,454.10

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Double scale
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Similar ratio
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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.