Home / 851,804.20-1,277,706.30-477,778.60

Finding the Fourth Proportional to 851,804.20, 1,277,706.30 and 477,778.60

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Solution

The fourth proportional to 851,804.20, 1,277,706.30 and 477,778.60 is: 716,667.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,804.20 : 1,277,706.30 = 477,778.60 : x
  2. Step 2: Convert to fraction form
    851,804.20/1,277,706.30 = 477,778.60/x
  3. Step 3: Cross multiply
    851,804.20x = 1,277,706.30 × 477,778.60
  4. Step 4: Simplify right side
    851,804.20x = 610,460,727,225.18
  5. Step 5: Solve for x
    x = 610,460,727,225.18/851,804.20
  6. Step 6: Final answer
    x = 716,667.90

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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.