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Finding the Fourth Proportional to 836,676.40, 1,255,014.60 and 777,627.40

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Solution

The fourth proportional to 836,676.40, 1,255,014.60 and 777,627.40 is: 1,166,441.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,676.40 : 1,255,014.60 = 777,627.40 : x
  2. Step 2: Convert to fraction form
    836,676.40/1,255,014.60 = 777,627.40/x
  3. Step 3: Cross multiply
    836,676.40x = 1,255,014.60 × 777,627.40
  4. Step 4: Simplify right side
    836,676.40x = 975,933,740,360.04
  5. Step 5: Solve for x
    x = 975,933,740,360.04/836,676.40
  6. Step 6: Final answer
    x = 1,166,441.10

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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.