Home / 1,838,403.52-2,756,719.53-640,299.31

Finding the Fourth Proportional to 1,838,403.52, 2,756,719.53 and 640,299.31

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Solution

The fourth proportional to 1,838,403.52, 2,756,719.53 and 640,299.31 is: 960,140.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,838,403.52 : 2,756,719.53 = 640,299.31 : x
  2. Step 2: Convert to fraction form
    1,838,403.52/2,756,719.53 = 640,299.31/x
  3. Step 3: Cross multiply
    1,838,403.52x = 2,756,719.53 × 640,299.31
  4. Step 4: Simplify right side
    1,838,403.52x = 1,765,125,612,922.52
  5. Step 5: Solve for x
    x = 1,765,125,612,922.52/1,838,403.52
  6. Step 6: Final answer
    x = 960,140.47

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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.