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Finding the Fourth Proportional to 495,778.80, 684,174.66 and 269,424.30

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Solution

The fourth proportional to 495,778.80, 684,174.66 and 269,424.30 is: 371,805.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,778.80 : 684,174.66 = 269,424.30 : x
  2. Step 2: Convert to fraction form
    495,778.80/684,174.66 = 269,424.30/x
  3. Step 3: Cross multiply
    495,778.80x = 684,174.66 × 269,424.30
  4. Step 4: Simplify right side
    495,778.80x = 184,333,278,848.24
  5. Step 5: Solve for x
    x = 184,333,278,848.24/495,778.80
  6. Step 6: Final answer
    x = 371,805.49

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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.