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Finding the Fourth Proportional to 435,235.40, 652,853.10 and 403,742.60

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Solution

The fourth proportional to 435,235.40, 652,853.10 and 403,742.60 is: 605,613.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,235.40 : 652,853.10 = 403,742.60 : x
  2. Step 2: Convert to fraction form
    435,235.40/652,853.10 = 403,742.60/x
  3. Step 3: Cross multiply
    435,235.40x = 652,853.10 × 403,742.60
  4. Step 4: Simplify right side
    435,235.40x = 263,584,608,012.06
  5. Step 5: Solve for x
    x = 263,584,608,012.06/435,235.40
  6. Step 6: Final answer
    x = 605,613.90

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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.