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Finding the Fourth Proportional to 207,630,573.60, 311,445,860.40 and 207,630,573.60

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Solution

The fourth proportional to 207,630,573.60, 311,445,860.40 and 207,630,573.60 is: 311,445,860.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,630,573.60 : 311,445,860.40 = 207,630,573.60 : x
  2. Step 2: Convert to fraction form
    207,630,573.60/311,445,860.40 = 207,630,573.60/x
  3. Step 3: Cross multiply
    207,630,573.60x = 311,445,860.40 × 207,630,573.60
  4. Step 4: Simplify right side
    207,630,573.60x = 64,665,682,640,197,520
  5. Step 5: Solve for x
    x = 64,665,682,640,197,520/207,630,573.60
  6. Step 6: Final answer
    x = 311,445,860.40

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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.