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Finding the Fourth Proportional to 445,589.10, 668,711.70 and 295,779.60

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Solution

The fourth proportional to 445,589.10, 668,711.70 and 295,779.60 is: 443,887.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,589.10 : 668,711.70 = 295,779.60 : x
  2. Step 2: Convert to fraction form
    445,589.10/668,711.70 = 295,779.60/x
  3. Step 3: Cross multiply
    445,589.10x = 668,711.70 × 295,779.60
  4. Step 4: Simplify right side
    445,589.10x = 197,791,279,141.32
  5. Step 5: Solve for x
    x = 197,791,279,141.32/445,589.10
  6. Step 6: Final answer
    x = 443,887.16

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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.