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Finding the Fourth Proportional to 455,561.10, 683,341.65 and 366,987.60

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Solution

The fourth proportional to 455,561.10, 683,341.65 and 366,987.60 is: 550,481.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,561.10 : 683,341.65 = 366,987.60 : x
  2. Step 2: Convert to fraction form
    455,561.10/683,341.65 = 366,987.60/x
  3. Step 3: Cross multiply
    455,561.10x = 683,341.65 × 366,987.60
  4. Step 4: Simplify right side
    455,561.10x = 250,777,912,113.54
  5. Step 5: Solve for x
    x = 250,777,912,113.54/455,561.10
  6. Step 6: Final answer
    x = 550,481.40

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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.