Home / 651,640.40-977,509.20-230,861.60

Finding the Fourth Proportional to 651,640.40, 977,509.20 and 230,861.60

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Solution

The fourth proportional to 651,640.40, 977,509.20 and 230,861.60 is: 346,309.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,640.40 : 977,509.20 = 230,861.60 : x
  2. Step 2: Convert to fraction form
    651,640.40/977,509.20 = 230,861.60/x
  3. Step 3: Cross multiply
    651,640.40x = 977,509.20 × 230,861.60
  4. Step 4: Simplify right side
    651,640.40x = 225,669,337,926.72
  5. Step 5: Solve for x
    x = 225,669,337,926.72/651,640.40
  6. Step 6: Final answer
    x = 346,309.62

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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.