Home / 939,200.40-1,408,800.60-622,630.80

Finding the Fourth Proportional to 939,200.40, 1,408,800.60 and 622,630.80

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Solution

The fourth proportional to 939,200.40, 1,408,800.60 and 622,630.80 is: 933,946.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,200.40 : 1,408,800.60 = 622,630.80 : x
  2. Step 2: Convert to fraction form
    939,200.40/1,408,800.60 = 622,630.80/x
  3. Step 3: Cross multiply
    939,200.40x = 1,408,800.60 × 622,630.80
  4. Step 4: Simplify right side
    939,200.40x = 877,162,644,618.48
  5. Step 5: Solve for x
    x = 877,162,644,618.48/939,200.40
  6. Step 6: Final answer
    x = 933,946.20

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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.