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Finding the Fourth Proportional to 545,696.16, 753,068.52 and 313,161

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Solution

The fourth proportional to 545,696.16, 753,068.52 and 313,161 is: 432,166.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,696.16 : 753,068.52 = 313,161 : x
  2. Step 2: Convert to fraction form
    545,696.16/753,068.52 = 313,161/x
  3. Step 3: Cross multiply
    545,696.16x = 753,068.52 × 313,161
  4. Step 4: Simplify right side
    545,696.16x = 235,831,690,791.72
  5. Step 5: Solve for x
    x = 235,831,690,791.72/545,696.16
  6. Step 6: Final answer
    x = 432,166.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.