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Finding the Fourth Proportional to 528,695.28, 793,125.54 and 173,628.36

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Solution

The fourth proportional to 528,695.28, 793,125.54 and 173,628.36 is: 260,469.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,695.28 : 793,125.54 = 173,628.36 : x
  2. Step 2: Convert to fraction form
    528,695.28/793,125.54 = 173,628.36/x
  3. Step 3: Cross multiply
    528,695.28x = 793,125.54 × 173,628.36
  4. Step 4: Simplify right side
    528,695.28x = 137,709,086,784.31
  5. Step 5: Solve for x
    x = 137,709,086,784.31/528,695.28
  6. Step 6: Final answer
    x = 260,469.67

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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.