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Finding the Fourth Proportional to 293,039.60, 439,559.40 and 193,312.40

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Solution

The fourth proportional to 293,039.60, 439,559.40 and 193,312.40 is: 289,968.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,039.60 : 439,559.40 = 193,312.40 : x
  2. Step 2: Convert to fraction form
    293,039.60/439,559.40 = 193,312.40/x
  3. Step 3: Cross multiply
    293,039.60x = 439,559.40 × 193,312.40
  4. Step 4: Simplify right side
    293,039.60x = 84,972,282,556.56
  5. Step 5: Solve for x
    x = 84,972,282,556.56/293,039.60
  6. Step 6: Final answer
    x = 289,968.60

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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.