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Finding the Fourth Proportional to 528,689.28, 793,116.54 and 173,622.36

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Solution

The fourth proportional to 528,689.28, 793,116.54 and 173,622.36 is: 260,460.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,689.28 : 793,116.54 = 173,622.36 : x
  2. Step 2: Convert to fraction form
    528,689.28/793,116.54 = 173,622.36/x
  3. Step 3: Cross multiply
    528,689.28x = 793,116.54 × 173,622.36
  4. Step 4: Simplify right side
    528,689.28x = 137,702,765,429.83
  5. Step 5: Solve for x
    x = 137,702,765,429.83/528,689.28
  6. Step 6: Final answer
    x = 260,460.67

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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.