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Finding the Fourth Proportional to 680,425.40, 1,018,794.90 and 532,969.40

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Solution

The fourth proportional to 680,425.40, 1,018,794.90 and 532,969.40 is: 798,010.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,425.40 : 1,018,794.90 = 532,969.40 : x
  2. Step 2: Convert to fraction form
    680,425.40/1,018,794.90 = 532,969.40/x
  3. Step 3: Cross multiply
    680,425.40x = 1,018,794.90 × 532,969.40
  4. Step 4: Simplify right side
    680,425.40x = 542,986,506,576.06
  5. Step 5: Solve for x
    x = 542,986,506,576.06/680,425.40
  6. Step 6: Final answer
    x = 798,010.34

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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.