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Finding the Fourth Proportional to 316,540.69, 436,824.98 and 180,574.39

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Solution

The fourth proportional to 316,540.69, 436,824.98 and 180,574.39 is: 249,191.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,540.69 : 436,824.98 = 180,574.39 : x
  2. Step 2: Convert to fraction form
    316,540.69/436,824.98 = 180,574.39/x
  3. Step 3: Cross multiply
    316,540.69x = 436,824.98 × 180,574.39
  4. Step 4: Simplify right side
    316,540.69x = 78,879,404,300.26
  5. Step 5: Solve for x
    x = 78,879,404,300.26/316,540.69
  6. Step 6: Final answer
    x = 249,191.99

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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.