Home / 516,208.23-712,391.21-286,765.80

Finding the Fourth Proportional to 516,208.23, 712,391.21 and 286,765.80

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Solution

The fourth proportional to 516,208.23, 712,391.21 and 286,765.80 is: 395,750.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,208.23 : 712,391.21 = 286,765.80 : x
  2. Step 2: Convert to fraction form
    516,208.23/712,391.21 = 286,765.80/x
  3. Step 3: Cross multiply
    516,208.23x = 712,391.21 × 286,765.80
  4. Step 4: Simplify right side
    516,208.23x = 204,289,433,814.79
  5. Step 5: Solve for x
    x = 204,289,433,814.79/516,208.23
  6. Step 6: Final answer
    x = 395,750.05

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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.