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Finding the Fourth Proportional to 443,803.56, 612,415.80 and 252,779.64

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Solution

The fourth proportional to 443,803.56, 612,415.80 and 252,779.64 is: 348,817.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,803.56 : 612,415.80 = 252,779.64 : x
  2. Step 2: Convert to fraction form
    443,803.56/612,415.80 = 252,779.64/x
  3. Step 3: Cross multiply
    443,803.56x = 612,415.80 × 252,779.64
  4. Step 4: Simplify right side
    443,803.56x = 154,806,245,454.31
  5. Step 5: Solve for x
    x = 154,806,245,454.31/443,803.56
  6. Step 6: Final answer
    x = 348,817.04

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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.