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Finding the Fourth Proportional to 602,589.40, 831,625.98 and 330,709.78

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Solution

The fourth proportional to 602,589.40, 831,625.98 and 330,709.78 is: 456,408.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,589.40 : 831,625.98 = 330,709.78 : x
  2. Step 2: Convert to fraction form
    602,589.40/831,625.98 = 330,709.78/x
  3. Step 3: Cross multiply
    602,589.40x = 831,625.98 × 330,709.78
  4. Step 4: Simplify right side
    602,589.40x = 275,026,844,888.08
  5. Step 5: Solve for x
    x = 275,026,844,888.08/602,589.40
  6. Step 6: Final answer
    x = 456,408.37

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1.5x scale

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.