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Finding the Fourth Proportional to 492,208.76, 679,324.02 and 298,648.28

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Solution

The fourth proportional to 492,208.76, 679,324.02 and 298,648.28 is: 412,180.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,208.76 : 679,324.02 = 298,648.28 : x
  2. Step 2: Convert to fraction form
    492,208.76/679,324.02 = 298,648.28/x
  3. Step 3: Cross multiply
    492,208.76x = 679,324.02 × 298,648.28
  4. Step 4: Simplify right side
    492,208.76x = 202,878,950,135.69
  5. Step 5: Solve for x
    x = 202,878,950,135.69/492,208.76
  6. Step 6: Final answer
    x = 412,180.70

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.