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Finding the Fourth Proportional to 316,558.80, 436,892.72 and 180,561.51

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Solution

The fourth proportional to 316,558.80, 436,892.72 and 180,561.51 is: 249,198.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,558.80 : 436,892.72 = 180,561.51 : x
  2. Step 2: Convert to fraction form
    316,558.80/436,892.72 = 180,561.51/x
  3. Step 3: Cross multiply
    316,558.80x = 436,892.72 × 180,561.51
  4. Step 4: Simplify right side
    316,558.80x = 78,886,008,328.40
  5. Step 5: Solve for x
    x = 78,886,008,328.40/316,558.80
  6. Step 6: Final answer
    x = 249,198.60

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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.