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Finding the Fourth Proportional to 673,603,657.70, 1,010,405,486.55 and 664,533,731.30

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Solution

The fourth proportional to 673,603,657.70, 1,010,405,486.55 and 664,533,731.30 is: 996,800,596.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,603,657.70 : 1,010,405,486.55 = 664,533,731.30 : x
  2. Step 2: Convert to fraction form
    673,603,657.70/1,010,405,486.55 = 664,533,731.30/x
  3. Step 3: Cross multiply
    673,603,657.70x = 1,010,405,486.55 × 664,533,731.30
  4. Step 4: Simplify right side
    673,603,657.70x = 671,448,528,103,063,424
  5. Step 5: Solve for x
    x = 671,448,528,103,063,424/673,603,657.70
  6. Step 6: Final answer
    x = 996,800,596.95

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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.