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Finding the Fourth Proportional to 827,124.40, 1,240,832.40 and 294,954.40

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Solution

The fourth proportional to 827,124.40, 1,240,832.40 and 294,954.40 is: 442,483.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,124.40 : 1,240,832.40 = 294,954.40 : x
  2. Step 2: Convert to fraction form
    827,124.40/1,240,832.40 = 294,954.40/x
  3. Step 3: Cross multiply
    827,124.40x = 1,240,832.40 × 294,954.40
  4. Step 4: Simplify right side
    827,124.40x = 365,988,976,042.56
  5. Step 5: Solve for x
    x = 365,988,976,042.56/827,124.40
  6. Step 6: Final answer
    x = 442,483.59

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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.