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Finding the Fourth Proportional to 545,334.68, 818,343.03 and 208,404.11

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Solution

The fourth proportional to 545,334.68, 818,343.03 and 208,404.11 is: 312,736.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,334.68 : 818,343.03 = 208,404.11 : x
  2. Step 2: Convert to fraction form
    545,334.68/818,343.03 = 208,404.11/x
  3. Step 3: Cross multiply
    545,334.68x = 818,343.03 × 208,404.11
  4. Step 4: Simplify right side
    545,334.68x = 170,546,050,841.85
  5. Step 5: Solve for x
    x = 170,546,050,841.85/545,334.68
  6. Step 6: Final answer
    x = 312,736.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.