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Finding the Fourth Proportional to 807,989,641.02, 1,115,026,182 and 450,757,418.94

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Solution

The fourth proportional to 807,989,641.02, 1,115,026,182 and 450,757,418.94 is: 622,045,504.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,989,641.02 : 1,115,026,182 = 450,757,418.94 : x
  2. Step 2: Convert to fraction form
    807,989,641.02/1,115,026,182 = 450,757,418.94/x
  3. Step 3: Cross multiply
    807,989,641.02x = 1,115,026,182 × 450,757,418.94
  4. Step 4: Simplify right side
    807,989,641.02x = 502,606,323,848,842,688
  5. Step 5: Solve for x
    x = 502,606,323,848,842,688/807,989,641.02
  6. Step 6: Final answer
    x = 622,045,504.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.