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Finding the Fourth Proportional to 295,211.70, 442,161.45 and 228,435.30

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Solution

The fourth proportional to 295,211.70, 442,161.45 and 228,435.30 is: 342,145.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,211.70 : 442,161.45 = 228,435.30 : x
  2. Step 2: Convert to fraction form
    295,211.70/442,161.45 = 228,435.30/x
  3. Step 3: Cross multiply
    295,211.70x = 442,161.45 × 228,435.30
  4. Step 4: Simplify right side
    295,211.70x = 101,005,283,479.19
  5. Step 5: Solve for x
    x = 101,005,283,479.19/295,211.70
  6. Step 6: Final answer
    x = 342,145.26

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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.