Home / 405,066.81-558,992.20-235,311.87

Finding the Fourth Proportional to 405,066.81, 558,992.20 and 235,311.87

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Solution

The fourth proportional to 405,066.81, 558,992.20 and 235,311.87 is: 324,730.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,066.81 : 558,992.20 = 235,311.87 : x
  2. Step 2: Convert to fraction form
    405,066.81/558,992.20 = 235,311.87/x
  3. Step 3: Cross multiply
    405,066.81x = 558,992.20 × 235,311.87
  4. Step 4: Simplify right side
    405,066.81x = 131,537,499,897.41
  5. Step 5: Solve for x
    x = 131,537,499,897.41/405,066.81
  6. Step 6: Final answer
    x = 324,730.38

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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.