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Finding the Fourth Proportional to 326,053.80, 488,837.70 and 168,395.40

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Solution

The fourth proportional to 326,053.80, 488,837.70 and 168,395.40 is: 252,467.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,053.80 : 488,837.70 = 168,395.40 : x
  2. Step 2: Convert to fraction form
    326,053.80/488,837.70 = 168,395.40/x
  3. Step 3: Cross multiply
    326,053.80x = 488,837.70 × 168,395.40
  4. Step 4: Simplify right side
    326,053.80x = 82,318,020,026.58
  5. Step 5: Solve for x
    x = 82,318,020,026.58/326,053.80
  6. Step 6: Final answer
    x = 252,467.60

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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.