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Finding the Fourth Proportional to 693,629.20, 958,017 and 466,915.60

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Solution

The fourth proportional to 693,629.20, 958,017 and 466,915.60 is: 644,887.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,629.20 : 958,017 = 466,915.60 : x
  2. Step 2: Convert to fraction form
    693,629.20/958,017 = 466,915.60/x
  3. Step 3: Cross multiply
    693,629.20x = 958,017 × 466,915.60
  4. Step 4: Simplify right side
    693,629.20x = 447,313,082,365.20
  5. Step 5: Solve for x
    x = 447,313,082,365.20/693,629.20
  6. Step 6: Final answer
    x = 644,887.91

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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.