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Finding the Fourth Proportional to 525,672,068.40, 788,508,102.60 and 445,050,500.40

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Solution

The fourth proportional to 525,672,068.40, 788,508,102.60 and 445,050,500.40 is: 667,575,750.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,672,068.40 : 788,508,102.60 = 445,050,500.40 : x
  2. Step 2: Convert to fraction form
    525,672,068.40/788,508,102.60 = 445,050,500.40/x
  3. Step 3: Cross multiply
    525,672,068.40x = 788,508,102.60 × 445,050,500.40
  4. Step 4: Simplify right side
    525,672,068.40x = 350,925,925,631,584,512
  5. Step 5: Solve for x
    x = 350,925,925,631,584,512/525,672,068.40
  6. Step 6: Final answer
    x = 667,575,750.60

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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.