Home / 821,915.43-1,134,278.33-459,339.29

Finding the Fourth Proportional to 821,915.43, 1,134,278.33 and 459,339.29

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Solution

The fourth proportional to 821,915.43, 1,134,278.33 and 459,339.29 is: 633,907.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,915.43 : 1,134,278.33 = 459,339.29 : x
  2. Step 2: Convert to fraction form
    821,915.43/1,134,278.33 = 459,339.29/x
  3. Step 3: Cross multiply
    821,915.43x = 1,134,278.33 × 459,339.29
  4. Step 4: Simplify right side
    821,915.43x = 521,018,596,519.02
  5. Step 5: Solve for x
    x = 521,018,596,519.02/821,915.43
  6. Step 6: Final answer
    x = 633,907.79

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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.