Home / 669,886.80-1,004,830.20-543,915.60

Finding the Fourth Proportional to 669,886.80, 1,004,830.20 and 543,915.60

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Solution

The fourth proportional to 669,886.80, 1,004,830.20 and 543,915.60 is: 815,873.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,886.80 : 1,004,830.20 = 543,915.60 : x
  2. Step 2: Convert to fraction form
    669,886.80/1,004,830.20 = 543,915.60/x
  3. Step 3: Cross multiply
    669,886.80x = 1,004,830.20 × 543,915.60
  4. Step 4: Simplify right side
    669,886.80x = 546,542,821,131.12
  5. Step 5: Solve for x
    x = 546,542,821,131.12/669,886.80
  6. Step 6: Final answer
    x = 815,873.40

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Similar ratio
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1.5x scale

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.