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Finding the Fourth Proportional to 675,364.80, 1,013,047.20 and 675,364.80

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Solution

The fourth proportional to 675,364.80, 1,013,047.20 and 675,364.80 is: 1,013,047.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,364.80 : 1,013,047.20 = 675,364.80 : x
  2. Step 2: Convert to fraction form
    675,364.80/1,013,047.20 = 675,364.80/x
  3. Step 3: Cross multiply
    675,364.80x = 1,013,047.20 × 675,364.80
  4. Step 4: Simplify right side
    675,364.80x = 684,176,419,618.56
  5. Step 5: Solve for x
    x = 684,176,419,618.56/675,364.80
  6. Step 6: Final answer
    x = 1,013,047.20

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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.