Home / 1,640,328.60-2,460,492.90-919,930.80

Finding the Fourth Proportional to 1,640,328.60, 2,460,492.90 and 919,930.80

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Solution

The fourth proportional to 1,640,328.60, 2,460,492.90 and 919,930.80 is: 1,379,896.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,328.60 : 2,460,492.90 = 919,930.80 : x
  2. Step 2: Convert to fraction form
    1,640,328.60/2,460,492.90 = 919,930.80/x
  3. Step 3: Cross multiply
    1,640,328.60x = 2,460,492.90 × 919,930.80
  4. Step 4: Simplify right side
    1,640,328.60x = 2,263,483,201,891.32
  5. Step 5: Solve for x
    x = 2,263,483,201,891.32/1,640,328.60
  6. Step 6: Final answer
    x = 1,379,896.20

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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.