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Finding the Fourth Proportional to 293,421.60, 440,278.20 and 115,934.40

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Solution

The fourth proportional to 293,421.60, 440,278.20 and 115,934.40 is: 173,959.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,421.60 : 440,278.20 = 115,934.40 : x
  2. Step 2: Convert to fraction form
    293,421.60/440,278.20 = 115,934.40/x
  3. Step 3: Cross multiply
    293,421.60x = 440,278.20 × 115,934.40
  4. Step 4: Simplify right side
    293,421.60x = 51,043,388,950.08
  5. Step 5: Solve for x
    x = 51,043,388,950.08/293,421.60
  6. Step 6: Final answer
    x = 173,959.21

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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.