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Finding the Fourth Proportional to 467,705.20, 702,076.20 and 290,412.40

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Solution

The fourth proportional to 467,705.20, 702,076.20 and 290,412.40 is: 435,940.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,705.20 : 702,076.20 = 290,412.40 : x
  2. Step 2: Convert to fraction form
    467,705.20/702,076.20 = 290,412.40/x
  3. Step 3: Cross multiply
    467,705.20x = 702,076.20 × 290,412.40
  4. Step 4: Simplify right side
    467,705.20x = 203,891,634,224.88
  5. Step 5: Solve for x
    x = 203,891,634,224.88/467,705.20
  6. Step 6: Final answer
    x = 435,940.49

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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.