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Finding the Fourth Proportional to 316,627.50, 436,950.72 and 173,400.84

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Solution

The fourth proportional to 316,627.50, 436,950.72 and 173,400.84 is: 239,295.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,627.50 : 436,950.72 = 173,400.84 : x
  2. Step 2: Convert to fraction form
    316,627.50/436,950.72 = 173,400.84/x
  3. Step 3: Cross multiply
    316,627.50x = 436,950.72 × 173,400.84
  4. Step 4: Simplify right side
    316,627.50x = 75,767,621,886.60
  5. Step 5: Solve for x
    x = 75,767,621,886.60/316,627.50
  6. Step 6: Final answer
    x = 239,295.77

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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.