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Finding the Fourth Proportional to 671,362,532.73, 919,769,950.71 and 646,200,046.89

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Solution

The fourth proportional to 671,362,532.73, 919,769,950.71 and 646,200,046.89 is: 885,297,222.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,362,532.73 : 919,769,950.71 = 646,200,046.89 : x
  2. Step 2: Convert to fraction form
    671,362,532.73/919,769,950.71 = 646,200,046.89/x
  3. Step 3: Cross multiply
    671,362,532.73x = 919,769,950.71 × 646,200,046.89
  4. Step 4: Simplify right side
    671,362,532.73x = 594,355,385,276,814,976
  5. Step 5: Solve for x
    x = 594,355,385,276,814,976/671,362,532.73
  6. Step 6: Final answer
    x = 885,297,222.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.