Home / 540,243.03-810,504.68-287,315.54

Finding the Fourth Proportional to 540,243.03, 810,504.68 and 287,315.54

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Solution

The fourth proportional to 540,243.03, 810,504.68 and 287,315.54 is: 431,047.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,243.03 : 810,504.68 = 287,315.54 : x
  2. Step 2: Convert to fraction form
    540,243.03/810,504.68 = 287,315.54/x
  3. Step 3: Cross multiply
    540,243.03x = 810,504.68 × 287,315.54
  4. Step 4: Simplify right side
    540,243.03x = 232,870,592,765.64
  5. Step 5: Solve for x
    x = 232,870,592,765.64/540,243.03
  6. Step 6: Final answer
    x = 431,047.84

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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.