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Finding the Fourth Proportional to 627,040.16, 864,726 and 483,572.96

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Solution

The fourth proportional to 627,040.16, 864,726 and 483,572.96 is: 666,876.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,040.16 : 864,726 = 483,572.96 : x
  2. Step 2: Convert to fraction form
    627,040.16/864,726 = 483,572.96/x
  3. Step 3: Cross multiply
    627,040.16x = 864,726 × 483,572.96
  4. Step 4: Simplify right side
    627,040.16x = 418,158,111,408.96
  5. Step 5: Solve for x
    x = 418,158,111,408.96/627,040.16
  6. Step 6: Final answer
    x = 666,876.12

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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.