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Finding the Fourth Proportional to 495,646.80, 683,992.44 and 269,293.20

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Solution

The fourth proportional to 495,646.80, 683,992.44 and 269,293.20 is: 371,624.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,646.80 : 683,992.44 = 269,293.20 : x
  2. Step 2: Convert to fraction form
    495,646.80/683,992.44 = 269,293.20/x
  3. Step 3: Cross multiply
    495,646.80x = 683,992.44 × 269,293.20
  4. Step 4: Simplify right side
    495,646.80x = 184,194,512,943.41
  5. Step 5: Solve for x
    x = 184,194,512,943.41/495,646.80
  6. Step 6: Final answer
    x = 371,624.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.