Home / 1,640,820.60-2,461,214.70-518,889.60

Finding the Fourth Proportional to 1,640,820.60, 2,461,214.70 and 518,889.60

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Solution

The fourth proportional to 1,640,820.60, 2,461,214.70 and 518,889.60 is: 778,329.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,820.60 : 2,461,214.70 = 518,889.60 : x
  2. Step 2: Convert to fraction form
    1,640,820.60/2,461,214.70 = 518,889.60/x
  3. Step 3: Cross multiply
    1,640,820.60x = 2,461,214.70 × 518,889.60
  4. Step 4: Simplify right side
    1,640,820.60x = 1,277,098,711,197.12
  5. Step 5: Solve for x
    x = 1,277,098,711,197.12/1,640,820.60
  6. Step 6: Final answer
    x = 778,329.28

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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.