Home / 495,369.41-742,819.91-191,905.70

Finding the Fourth Proportional to 495,369.41, 742,819.91 and 191,905.70

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Solution

The fourth proportional to 495,369.41, 742,819.91 and 191,905.70 is: 287,767.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,369.41 : 742,819.91 = 191,905.70 : x
  2. Step 2: Convert to fraction form
    495,369.41/742,819.91 = 191,905.70/x
  3. Step 3: Cross multiply
    495,369.41x = 742,819.91 × 191,905.70
  4. Step 4: Simplify right side
    495,369.41x = 142,551,370,128.86
  5. Step 5: Solve for x
    x = 142,551,370,128.86/495,369.41
  6. Step 6: Final answer
    x = 287,767.81

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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.