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Finding the Fourth Proportional to 624,859.84, 862,307.04 and 338,380.24

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Solution

The fourth proportional to 624,859.84, 862,307.04 and 338,380.24 is: 466,964.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,859.84 : 862,307.04 = 338,380.24 : x
  2. Step 2: Convert to fraction form
    624,859.84/862,307.04 = 338,380.24/x
  3. Step 3: Cross multiply
    624,859.84x = 862,307.04 × 338,380.24
  4. Step 4: Simplify right side
    624,859.84x = 291,787,663,148.89
  5. Step 5: Solve for x
    x = 291,787,663,148.89/624,859.84
  6. Step 6: Final answer
    x = 466,964.98

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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.