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Finding the Fourth Proportional to 547,696.51, 821,535.88 and 210,810.35

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Solution

The fourth proportional to 547,696.51, 821,535.88 and 210,810.35 is: 316,212.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,696.51 : 821,535.88 = 210,810.35 : x
  2. Step 2: Convert to fraction form
    547,696.51/821,535.88 = 210,810.35/x
  3. Step 3: Cross multiply
    547,696.51x = 821,535.88 × 210,810.35
  4. Step 4: Simplify right side
    547,696.51x = 173,188,266,400.36
  5. Step 5: Solve for x
    x = 173,188,266,400.36/547,696.51
  6. Step 6: Final answer
    x = 316,212.11

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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.