Home / 2,139,090.90-3,208,605.33-519,871.74

Finding the Fourth Proportional to 2,139,090.90, 3,208,605.33 and 519,871.74

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Solution

The fourth proportional to 2,139,090.90, 3,208,605.33 and 519,871.74 is: 779,800.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,090.90 : 3,208,605.33 = 519,871.74 : x
  2. Step 2: Convert to fraction form
    2,139,090.90/3,208,605.33 = 519,871.74/x
  3. Step 3: Cross multiply
    2,139,090.90x = 3,208,605.33 × 519,871.74
  4. Step 4: Simplify right side
    2,139,090.90x = 1,668,063,235,880.37
  5. Step 5: Solve for x
    x = 1,668,063,235,880.37/2,139,090.90
  6. Step 6: Final answer
    x = 779,800.07

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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.