Home / 628,869.23-867,795.76-356,942.67

Finding the Fourth Proportional to 628,869.23, 867,795.76 and 356,942.67

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Solution

The fourth proportional to 628,869.23, 867,795.76 and 356,942.67 is: 492,556.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,869.23 : 867,795.76 = 356,942.67 : x
  2. Step 2: Convert to fraction form
    628,869.23/867,795.76 = 356,942.67/x
  3. Step 3: Cross multiply
    628,869.23x = 867,795.76 × 356,942.67
  4. Step 4: Simplify right side
    628,869.23x = 309,753,329,465.39
  5. Step 5: Solve for x
    x = 309,753,329,465.39/628,869.23
  6. Step 6: Final answer
    x = 492,556.03

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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.