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Finding the Fourth Proportional to 641,573.40, 962,360.10 and 168,306.60

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Solution

The fourth proportional to 641,573.40, 962,360.10 and 168,306.60 is: 252,459.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,573.40 : 962,360.10 = 168,306.60 : x
  2. Step 2: Convert to fraction form
    641,573.40/962,360.10 = 168,306.60/x
  3. Step 3: Cross multiply
    641,573.40x = 962,360.10 × 168,306.60
  4. Step 4: Simplify right side
    641,573.40x = 161,971,556,406.66
  5. Step 5: Solve for x
    x = 161,971,556,406.66/641,573.40
  6. Step 6: Final answer
    x = 252,459.90

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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.