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Finding the Fourth Proportional to 671,362,554.72, 919,769,980.86 and 646,200,068.88

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Solution

The fourth proportional to 671,362,554.72, 919,769,980.86 and 646,200,068.88 is: 885,297,252.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,362,554.72 : 919,769,980.86 = 646,200,068.88 : x
  2. Step 2: Convert to fraction form
    671,362,554.72/919,769,980.86 = 646,200,068.88/x
  3. Step 3: Cross multiply
    671,362,554.72x = 919,769,980.86 × 646,200,068.88
  4. Step 4: Simplify right side
    671,362,554.72x = 594,355,424,985,488,256
  5. Step 5: Solve for x
    x = 594,355,424,985,488,256/671,362,554.72
  6. Step 6: Final answer
    x = 885,297,252.29

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