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Finding the Fourth Proportional to 318,453.76, 439,492.80 and 175,240.96

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Solution

The fourth proportional to 318,453.76, 439,492.80 and 175,240.96 is: 241,847.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,453.76 : 439,492.80 = 175,240.96 : x
  2. Step 2: Convert to fraction form
    318,453.76/439,492.80 = 175,240.96/x
  3. Step 3: Cross multiply
    318,453.76x = 439,492.80 × 175,240.96
  4. Step 4: Simplify right side
    318,453.76x = 77,017,140,185.09
  5. Step 5: Solve for x
    x = 77,017,140,185.09/318,453.76
  6. Step 6: Final answer
    x = 241,847.17

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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.