Home / 1,047,668.28-1,445,743.80-640,452.12

Finding the Fourth Proportional to 1,047,668.28, 1,445,743.80 and 640,452.12

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Solution

The fourth proportional to 1,047,668.28, 1,445,743.80 and 640,452.12 is: 883,800.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,668.28 : 1,445,743.80 = 640,452.12 : x
  2. Step 2: Convert to fraction form
    1,047,668.28/1,445,743.80 = 640,452.12/x
  3. Step 3: Cross multiply
    1,047,668.28x = 1,445,743.80 × 640,452.12
  4. Step 4: Simplify right side
    1,047,668.28x = 925,929,681,686.86
  5. Step 5: Solve for x
    x = 925,929,681,686.86/1,047,668.28
  6. Step 6: Final answer
    x = 883,800.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.