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Finding the Fourth Proportional to 592,880.64, 818,170.44 and 320,943

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Solution

The fourth proportional to 592,880.64, 818,170.44 and 320,943 is: 442,898.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,880.64 : 818,170.44 = 320,943 : x
  2. Step 2: Convert to fraction form
    592,880.64/818,170.44 = 320,943/x
  3. Step 3: Cross multiply
    592,880.64x = 818,170.44 × 320,943
  4. Step 4: Simplify right side
    592,880.64x = 262,586,075,524.92
  5. Step 5: Solve for x
    x = 262,586,075,524.92/592,880.64
  6. Step 6: Final answer
    x = 442,898.72

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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.