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Finding the Fourth Proportional to 664,402.44, 916,862.58 and 362,598.60

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Solution

The fourth proportional to 664,402.44, 916,862.58 and 362,598.60 is: 500,379.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,402.44 : 916,862.58 = 362,598.60 : x
  2. Step 2: Convert to fraction form
    664,402.44/916,862.58 = 362,598.60/x
  3. Step 3: Cross multiply
    664,402.44x = 916,862.58 × 362,598.60
  4. Step 4: Simplify right side
    664,402.44x = 332,453,087,900.39
  5. Step 5: Solve for x
    x = 332,453,087,900.39/664,402.44
  6. Step 6: Final answer
    x = 500,379.09

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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.