Home / 1,668,781.85-2,503,278.47-644,600.63

Finding the Fourth Proportional to 1,668,781.85, 2,503,278.47 and 644,600.63

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Solution

The fourth proportional to 1,668,781.85, 2,503,278.47 and 644,600.63 is: 966,941.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668,781.85 : 2,503,278.47 = 644,600.63 : x
  2. Step 2: Convert to fraction form
    1,668,781.85/2,503,278.47 = 644,600.63/x
  3. Step 3: Cross multiply
    1,668,781.85x = 2,503,278.47 × 644,600.63
  4. Step 4: Simplify right side
    1,668,781.85x = 1,613,614,886,697.13
  5. Step 5: Solve for x
    x = 1,613,614,886,697.13/1,668,781.85
  6. Step 6: Final answer
    x = 966,941.78

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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.