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Finding the Fourth Proportional to 553,638.56, 759,038.44 and 543,549.56

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Solution

The fourth proportional to 553,638.56, 759,038.44 and 543,549.56 is: 745,206.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,638.56 : 759,038.44 = 543,549.56 : x
  2. Step 2: Convert to fraction form
    553,638.56/759,038.44 = 543,549.56/x
  3. Step 3: Cross multiply
    553,638.56x = 759,038.44 × 543,549.56
  4. Step 4: Simplify right side
    553,638.56x = 412,575,010,085.09
  5. Step 5: Solve for x
    x = 412,575,010,085.09/553,638.56
  6. Step 6: Final answer
    x = 745,206.42

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.