Home / 863,640.58-1,293,725.92-430,051.76

Finding the Fourth Proportional to 863,640.58, 1,293,725.92 and 430,051.76

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Solution

The fourth proportional to 863,640.58, 1,293,725.92 and 430,051.76 is: 644,213.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,640.58 : 1,293,725.92 = 430,051.76 : x
  2. Step 2: Convert to fraction form
    863,640.58/1,293,725.92 = 430,051.76/x
  3. Step 3: Cross multiply
    863,640.58x = 1,293,725.92 × 430,051.76
  4. Step 4: Simplify right side
    863,640.58x = 556,369,108,853.62
  5. Step 5: Solve for x
    x = 556,369,108,853.62/863,640.58
  6. Step 6: Final answer
    x = 644,213.72

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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.