Home / 519,864.44-778,022.40-435,719.60

Finding the Fourth Proportional to 519,864.44, 778,022.40 and 435,719.60

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Solution

The fourth proportional to 519,864.44, 778,022.40 and 435,719.60 is: 652,092.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,864.44 : 778,022.40 = 435,719.60 : x
  2. Step 2: Convert to fraction form
    519,864.44/778,022.40 = 435,719.60/x
  3. Step 3: Cross multiply
    519,864.44x = 778,022.40 × 435,719.60
  4. Step 4: Simplify right side
    519,864.44x = 338,999,608,919.04
  5. Step 5: Solve for x
    x = 338,999,608,919.04/519,864.44
  6. Step 6: Final answer
    x = 652,092.32

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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.