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Finding the Fourth Proportional to 298,003.20, 446,875.20 and 98,246.40

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Solution

The fourth proportional to 298,003.20, 446,875.20 and 98,246.40 is: 147,326.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,003.20 : 446,875.20 = 98,246.40 : x
  2. Step 2: Convert to fraction form
    298,003.20/446,875.20 = 98,246.40/x
  3. Step 3: Cross multiply
    298,003.20x = 446,875.20 × 98,246.40
  4. Step 4: Simplify right side
    298,003.20x = 43,903,879,649.28
  5. Step 5: Solve for x
    x = 43,903,879,649.28/298,003.20
  6. Step 6: Final answer
    x = 147,326.87

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1.5x scale

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.