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Finding the Fourth Proportional to 508,401.40, 701,302.44 and 317,082.64

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Solution

The fourth proportional to 508,401.40, 701,302.44 and 317,082.64 is: 437,392.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,401.40 : 701,302.44 = 317,082.64 : x
  2. Step 2: Convert to fraction form
    508,401.40/701,302.44 = 317,082.64/x
  3. Step 3: Cross multiply
    508,401.40x = 701,302.44 × 317,082.64
  4. Step 4: Simplify right side
    508,401.40x = 222,370,829,113.64
  5. Step 5: Solve for x
    x = 222,370,829,113.64/508,401.40
  6. Step 6: Final answer
    x = 437,392.24

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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.