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Finding the Fourth Proportional to 628,758.03, 867,551.53 and 374,059.47

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Solution

The fourth proportional to 628,758.03, 867,551.53 and 374,059.47 is: 516,122.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,758.03 : 867,551.53 = 374,059.47 : x
  2. Step 2: Convert to fraction form
    628,758.03/867,551.53 = 374,059.47/x
  3. Step 3: Cross multiply
    628,758.03x = 867,551.53 × 374,059.47
  4. Step 4: Simplify right side
    628,758.03x = 324,515,865,509.49
  5. Step 5: Solve for x
    x = 324,515,865,509.49/628,758.03
  6. Step 6: Final answer
    x = 516,122.02

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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.