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Finding the Fourth Proportional to 400,174.40, 599,455.20 and 249,953.60

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Solution

The fourth proportional to 400,174.40, 599,455.20 and 249,953.60 is: 374,426.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,174.40 : 599,455.20 = 249,953.60 : x
  2. Step 2: Convert to fraction form
    400,174.40/599,455.20 = 249,953.60/x
  3. Step 3: Cross multiply
    400,174.40x = 599,455.20 × 249,953.60
  4. Step 4: Simplify right side
    400,174.40x = 149,835,985,278.72
  5. Step 5: Solve for x
    x = 149,835,985,278.72/400,174.40
  6. Step 6: Final answer
    x = 374,426.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.