Home / 1,640,506.80-2,263,898.81-915,354.33

Finding the Fourth Proportional to 1,640,506.80, 2,263,898.81 and 915,354.33

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Solution

The fourth proportional to 1,640,506.80, 2,263,898.81 and 915,354.33 is: 1,263,188.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,506.80 : 2,263,898.81 = 915,354.33 : x
  2. Step 2: Convert to fraction form
    1,640,506.80/2,263,898.81 = 915,354.33/x
  3. Step 3: Cross multiply
    1,640,506.80x = 2,263,898.81 × 915,354.33
  4. Step 4: Simplify right side
    1,640,506.80x = 2,072,269,573,838.58
  5. Step 5: Solve for x
    x = 2,072,269,573,838.58/1,640,506.80
  6. Step 6: Final answer
    x = 1,263,188.65

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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.