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Finding the Fourth Proportional to 443,995.94, 612,770.51 and 291,162.71

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Solution

The fourth proportional to 443,995.94, 612,770.51 and 291,162.71 is: 401,841.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,995.94 : 612,770.51 = 291,162.71 : x
  2. Step 2: Convert to fraction form
    443,995.94/612,770.51 = 291,162.71/x
  3. Step 3: Cross multiply
    443,995.94x = 612,770.51 × 291,162.71
  4. Step 4: Simplify right side
    443,995.94x = 178,415,924,559.52
  5. Step 5: Solve for x
    x = 178,415,924,559.52/443,995.94
  6. Step 6: Final answer
    x = 401,841.34

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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.