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Finding the Fourth Proportional to 612,390.14, 845,101.67 and 336,765.76

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Solution

The fourth proportional to 612,390.14, 845,101.67 and 336,765.76 is: 464,738.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,390.14 : 845,101.67 = 336,765.76 : x
  2. Step 2: Convert to fraction form
    612,390.14/845,101.67 = 336,765.76/x
  3. Step 3: Cross multiply
    612,390.14x = 845,101.67 × 336,765.76
  4. Step 4: Simplify right side
    612,390.14x = 284,601,309,258.55
  5. Step 5: Solve for x
    x = 284,601,309,258.55/612,390.14
  6. Step 6: Final answer
    x = 464,738.56

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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.