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Finding the Fourth Proportional to 531,740.17, 733,809.41 and 290,021.86

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Solution

The fourth proportional to 531,740.17, 733,809.41 and 290,021.86 is: 400,234.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,740.17 : 733,809.41 = 290,021.86 : x
  2. Step 2: Convert to fraction form
    531,740.17/733,809.41 = 290,021.86/x
  3. Step 3: Cross multiply
    531,740.17x = 733,809.41 × 290,021.86
  4. Step 4: Simplify right side
    531,740.17x = 212,820,769,973.70
  5. Step 5: Solve for x
    x = 212,820,769,973.70/531,740.17
  6. Step 6: Final answer
    x = 400,234.52

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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.