Home / 821,283.44-1,133,339.16-515,523.92

Finding the Fourth Proportional to 821,283.44, 1,133,339.16 and 515,523.92

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Solution

The fourth proportional to 821,283.44, 1,133,339.16 and 515,523.92 is: 711,402.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,283.44 : 1,133,339.16 = 515,523.92 : x
  2. Step 2: Convert to fraction form
    821,283.44/1,133,339.16 = 515,523.92/x
  3. Step 3: Cross multiply
    821,283.44x = 1,133,339.16 × 515,523.92
  4. Step 4: Simplify right side
    821,283.44x = 584,263,446,452.71
  5. Step 5: Solve for x
    x = 584,263,446,452.71/821,283.44
  6. Step 6: Final answer
    x = 711,402.93

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1.5x scale

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.