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Finding the Fourth Proportional to 3,140,800.80, 4,407,074.40 and 3,140,800.80

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Solution

The fourth proportional to 3,140,800.80, 4,407,074.40 and 3,140,800.80 is: 4,407,074.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140,800.80 : 4,407,074.40 = 3,140,800.80 : x
  2. Step 2: Convert to fraction form
    3,140,800.80/4,407,074.40 = 3,140,800.80/x
  3. Step 3: Cross multiply
    3,140,800.80x = 4,407,074.40 × 3,140,800.80
  4. Step 4: Simplify right side
    3,140,800.80x = 13,841,742,801,179.52
  5. Step 5: Solve for x
    x = 13,841,742,801,179.52/3,140,800.80
  6. Step 6: Final answer
    x = 4,407,074.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.