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Finding the Fourth Proportional to 664,214.67, 916,615.71 and 362,408.67

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Solution

The fourth proportional to 664,214.67, 916,615.71 and 362,408.67 is: 500,123.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,214.67 : 916,615.71 = 362,408.67 : x
  2. Step 2: Convert to fraction form
    664,214.67/916,615.71 = 362,408.67/x
  3. Step 3: Cross multiply
    664,214.67x = 916,615.71 × 362,408.67
  4. Step 4: Simplify right side
    664,214.67x = 332,189,480,362.21
  5. Step 5: Solve for x
    x = 332,189,480,362.21/664,214.67
  6. Step 6: Final answer
    x = 500,123.67

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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.