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Finding the Fourth Proportional to 352,027.20, 528,040.80 and 293,707.20

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Solution

The fourth proportional to 352,027.20, 528,040.80 and 293,707.20 is: 440,560.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,027.20 : 528,040.80 = 293,707.20 : x
  2. Step 2: Convert to fraction form
    352,027.20/528,040.80 = 293,707.20/x
  3. Step 3: Cross multiply
    352,027.20x = 528,040.80 × 293,707.20
  4. Step 4: Simplify right side
    352,027.20x = 155,089,384,853.76
  5. Step 5: Solve for x
    x = 155,089,384,853.76/352,027.20
  6. Step 6: Final answer
    x = 440,560.80

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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.