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Finding the Fourth Proportional to 503,140.49, 752,806.28 and 298,085.28

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Solution

The fourth proportional to 503,140.49, 752,806.28 and 298,085.28 is: 445,999.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,140.49 : 752,806.28 = 298,085.28 : x
  2. Step 2: Convert to fraction form
    503,140.49/752,806.28 = 298,085.28/x
  3. Step 3: Cross multiply
    503,140.49x = 752,806.28 × 298,085.28
  4. Step 4: Simplify right side
    503,140.49x = 224,400,468,681.75
  5. Step 5: Solve for x
    x = 224,400,468,681.75/503,140.49
  6. Step 6: Final answer
    x = 445,999.62

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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.