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Finding the Fourth Proportional to 443,688.58, 612,276.57 and 252,729.22

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Solution

The fourth proportional to 443,688.58, 612,276.57 and 252,729.22 is: 348,758.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,688.58 : 612,276.57 = 252,729.22 : x
  2. Step 2: Convert to fraction form
    443,688.58/612,276.57 = 252,729.22/x
  3. Step 3: Cross multiply
    443,688.58x = 612,276.57 × 252,729.22
  4. Step 4: Simplify right side
    443,688.58x = 154,740,179,960.38
  5. Step 5: Solve for x
    x = 154,740,179,960.38/443,688.58
  6. Step 6: Final answer
    x = 348,758.54

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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.