Home / 818,356.64-1,129,367.07-455,780.52

Finding the Fourth Proportional to 818,356.64, 1,129,367.07 and 455,780.52

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Solution

The fourth proportional to 818,356.64, 1,129,367.07 and 455,780.52 is: 628,996.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,356.64 : 1,129,367.07 = 455,780.52 : x
  2. Step 2: Convert to fraction form
    818,356.64/1,129,367.07 = 455,780.52/x
  3. Step 3: Cross multiply
    818,356.64x = 1,129,367.07 × 455,780.52
  4. Step 4: Simplify right side
    818,356.64x = 514,743,510,435.48
  5. Step 5: Solve for x
    x = 514,743,510,435.48/818,356.64
  6. Step 6: Final answer
    x = 628,996.56

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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.