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Finding the Fourth Proportional to 298,985,101.80, 448,477,652.70 and 296,969,562.60

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Solution

The fourth proportional to 298,985,101.80, 448,477,652.70 and 296,969,562.60 is: 445,454,343.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,985,101.80 : 448,477,652.70 = 296,969,562.60 : x
  2. Step 2: Convert to fraction form
    298,985,101.80/448,477,652.70 = 296,969,562.60/x
  3. Step 3: Cross multiply
    298,985,101.80x = 448,477,652.70 × 296,969,562.60
  4. Step 4: Simplify right side
    298,985,101.80x = 133,184,212,358,193,712
  5. Step 5: Solve for x
    x = 133,184,212,358,193,712/298,985,101.80
  6. Step 6: Final answer
    x = 445,454,343.90

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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.