Home / 318,539.72-439,584.90-175,299.74

Finding the Fourth Proportional to 318,539.72, 439,584.90 and 175,299.74

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Solution

The fourth proportional to 318,539.72, 439,584.90 and 175,299.74 is: 241,913.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,539.72 : 439,584.90 = 175,299.74 : x
  2. Step 2: Convert to fraction form
    318,539.72/439,584.90 = 175,299.74/x
  3. Step 3: Cross multiply
    318,539.72x = 439,584.90 × 175,299.74
  4. Step 4: Simplify right side
    318,539.72x = 77,059,118,677.93
  5. Step 5: Solve for x
    x = 77,059,118,677.93/318,539.72
  6. Step 6: Final answer
    x = 241,913.69

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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.