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Finding the Fourth Proportional to 466,850.40, 643,479.04 and 330,709.60

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Solution

The fourth proportional to 466,850.40, 643,479.04 and 330,709.60 is: 455,830.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,850.40 : 643,479.04 = 330,709.60 : x
  2. Step 2: Convert to fraction form
    466,850.40/643,479.04 = 330,709.60/x
  3. Step 3: Cross multiply
    466,850.40x = 643,479.04 × 330,709.60
  4. Step 4: Simplify right side
    466,850.40x = 212,804,695,926.78
  5. Step 5: Solve for x
    x = 212,804,695,926.78/466,850.40
  6. Step 6: Final answer
    x = 455,830.60

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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.