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Finding the Fourth Proportional to 552,970.94, 828,127.80 and 315,593.96

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Solution

The fourth proportional to 552,970.94, 828,127.80 and 315,593.96 is: 472,632.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,970.94 : 828,127.80 = 315,593.96 : x
  2. Step 2: Convert to fraction form
    552,970.94/828,127.80 = 315,593.96/x
  3. Step 3: Cross multiply
    552,970.94x = 828,127.80 × 315,593.96
  4. Step 4: Simplify right side
    552,970.94x = 261,352,127,647.45
  5. Step 5: Solve for x
    x = 261,352,127,647.45/552,970.94
  6. Step 6: Final answer
    x = 472,632.67

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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.