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Finding the Fourth Proportional to 540,028.20, 807,968.70 and 353,404.20

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Solution

The fourth proportional to 540,028.20, 807,968.70 and 353,404.20 is: 528,749.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,028.20 : 807,968.70 = 353,404.20 : x
  2. Step 2: Convert to fraction form
    540,028.20/807,968.70 = 353,404.20/x
  3. Step 3: Cross multiply
    540,028.20x = 807,968.70 × 353,404.20
  4. Step 4: Simplify right side
    540,028.20x = 285,539,532,048.54
  5. Step 5: Solve for x
    x = 285,539,532,048.54/540,028.20
  6. Step 6: Final answer
    x = 528,749.30

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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.