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Finding the Fourth Proportional to 492,206.76, 679,321.26 and 298,646.28

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Solution

The fourth proportional to 492,206.76, 679,321.26 and 298,646.28 is: 412,177.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,206.76 : 679,321.26 = 298,646.28 : x
  2. Step 2: Convert to fraction form
    492,206.76/679,321.26 = 298,646.28/x
  3. Step 3: Cross multiply
    492,206.76x = 679,321.26 × 298,646.28
  4. Step 4: Simplify right side
    492,206.76x = 202,876,767,223.91
  5. Step 5: Solve for x
    x = 202,876,767,223.91/492,206.76
  6. Step 6: Final answer
    x = 412,177.94

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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.