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Finding the Fourth Proportional to 446,970,385.80, 670,455,578.70 and 446,970,385.80

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Solution

The fourth proportional to 446,970,385.80, 670,455,578.70 and 446,970,385.80 is: 670,455,578.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,970,385.80 : 670,455,578.70 = 446,970,385.80 : x
  2. Step 2: Convert to fraction form
    446,970,385.80/670,455,578.70 = 446,970,385.80/x
  3. Step 3: Cross multiply
    446,970,385.80x = 670,455,578.70 × 446,970,385.80
  4. Step 4: Simplify right side
    446,970,385.80x = 299,673,788,673,301,312
  5. Step 5: Solve for x
    x = 299,673,788,673,301,312/446,970,385.80
  6. Step 6: Final answer
    x = 670,455,578.70

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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.