Home / 318,457.83-439,668.17-219,173.50

Finding the Fourth Proportional to 318,457.83, 439,668.17 and 219,173.50

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Solution

The fourth proportional to 318,457.83, 439,668.17 and 219,173.50 is: 302,594.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,457.83 : 439,668.17 = 219,173.50 : x
  2. Step 2: Convert to fraction form
    318,457.83/439,668.17 = 219,173.50/x
  3. Step 3: Cross multiply
    318,457.83x = 439,668.17 × 219,173.50
  4. Step 4: Simplify right side
    318,457.83x = 96,363,611,657.50
  5. Step 5: Solve for x
    x = 96,363,611,657.50/318,457.83
  6. Step 6: Final answer
    x = 302,594.57

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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.