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Finding the Fourth Proportional to 917,370.60, 1,375,510.74 and 348,793.30

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Solution

The fourth proportional to 917,370.60, 1,375,510.74 and 348,793.30 is: 522,982.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,370.60 : 1,375,510.74 = 348,793.30 : x
  2. Step 2: Convert to fraction form
    917,370.60/1,375,510.74 = 348,793.30/x
  3. Step 3: Cross multiply
    917,370.60x = 1,375,510.74 × 348,793.30
  4. Step 4: Simplify right side
    917,370.60x = 479,768,930,190.04
  5. Step 5: Solve for x
    x = 479,768,930,190.04/917,370.60
  6. Step 6: Final answer
    x = 522,982.67

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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.