Home / 443,531.86-612,074.22-239,582.78

Finding the Fourth Proportional to 443,531.86, 612,074.22 and 239,582.78

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Solution

The fourth proportional to 443,531.86, 612,074.22 and 239,582.78 is: 330,624.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,531.86 : 612,074.22 = 239,582.78 : x
  2. Step 2: Convert to fraction form
    443,531.86/612,074.22 = 239,582.78/x
  3. Step 3: Cross multiply
    443,531.86x = 612,074.22 × 239,582.78
  4. Step 4: Simplify right side
    443,531.86x = 146,642,444,973.32
  5. Step 5: Solve for x
    x = 146,642,444,973.32/443,531.86
  6. Step 6: Final answer
    x = 330,624.37

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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.