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Finding the Fourth Proportional to 919,114.16, 1,267,486.99 and 613,203.01

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Solution

The fourth proportional to 919,114.16, 1,267,486.99 and 613,203.01 is: 845,626.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,114.16 : 1,267,486.99 = 613,203.01 : x
  2. Step 2: Convert to fraction form
    919,114.16/1,267,486.99 = 613,203.01/x
  3. Step 3: Cross multiply
    919,114.16x = 1,267,486.99 × 613,203.01
  4. Step 4: Simplify right side
    919,114.16x = 777,226,832,702.12
  5. Step 5: Solve for x
    x = 777,226,832,702.12/919,114.16
  6. Step 6: Final answer
    x = 845,626.01

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