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Finding the Fourth Proportional to 495,425.14, 742,903.32 and 191,961.34

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Solution

The fourth proportional to 495,425.14, 742,903.32 and 191,961.34 is: 287,851.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,425.14 : 742,903.32 = 191,961.34 : x
  2. Step 2: Convert to fraction form
    495,425.14/742,903.32 = 191,961.34/x
  3. Step 3: Cross multiply
    495,425.14x = 742,903.32 × 191,961.34
  4. Step 4: Simplify right side
    495,425.14x = 142,608,716,797.65
  5. Step 5: Solve for x
    x = 142,608,716,797.65/495,425.14
  6. Step 6: Final answer
    x = 287,851.19

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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.