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Finding the Fourth Proportional to 542,326.99, 813,858 and 222,536.67

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Solution

The fourth proportional to 542,326.99, 813,858 and 222,536.67 is: 333,955.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,326.99 : 813,858 = 222,536.67 : x
  2. Step 2: Convert to fraction form
    542,326.99/813,858 = 222,536.67/x
  3. Step 3: Cross multiply
    542,326.99x = 813,858 × 222,536.67
  4. Step 4: Simplify right side
    542,326.99x = 181,113,249,172.86
  5. Step 5: Solve for x
    x = 181,113,249,172.86/542,326.99
  6. Step 6: Final answer
    x = 333,955.81

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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.