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Finding the Fourth Proportional to 392,354.57, 541,612.02 and 265,202.39

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Solution

The fourth proportional to 392,354.57, 541,612.02 and 265,202.39 is: 366,089.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,354.57 : 541,612.02 = 265,202.39 : x
  2. Step 2: Convert to fraction form
    392,354.57/541,612.02 = 265,202.39/x
  3. Step 3: Cross multiply
    392,354.57x = 541,612.02 × 265,202.39
  4. Step 4: Simplify right side
    392,354.57x = 143,636,799,448.67
  5. Step 5: Solve for x
    x = 143,636,799,448.67/392,354.57
  6. Step 6: Final answer
    x = 366,089.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.