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Finding the Fourth Proportional to 619,062.21, 928,401.73 and 299,015.28

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Solution

The fourth proportional to 619,062.21, 928,401.73 and 299,015.28 is: 448,430.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,062.21 : 928,401.73 = 299,015.28 : x
  2. Step 2: Convert to fraction form
    619,062.21/928,401.73 = 299,015.28/x
  3. Step 3: Cross multiply
    619,062.21x = 928,401.73 × 299,015.28
  4. Step 4: Simplify right side
    619,062.21x = 277,606,302,500.90
  5. Step 5: Solve for x
    x = 277,606,302,500.90/619,062.21
  6. Step 6: Final answer
    x = 448,430.38

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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.