Home / 391,619.23-540,393.93-230,464.67

Finding the Fourth Proportional to 391,619.23, 540,393.93 and 230,464.67

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Solution

The fourth proportional to 391,619.23, 540,393.93 and 230,464.67 is: 318,017.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,619.23 : 540,393.93 = 230,464.67 : x
  2. Step 2: Convert to fraction form
    391,619.23/540,393.93 = 230,464.67/x
  3. Step 3: Cross multiply
    391,619.23x = 540,393.93 × 230,464.67
  4. Step 4: Simplify right side
    391,619.23x = 124,541,706,045.48
  5. Step 5: Solve for x
    x = 124,541,706,045.48/391,619.23
  6. Step 6: Final answer
    x = 318,017.34

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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.