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Finding the Fourth Proportional to 435,653.40, 653,480.10 and 404,160.60

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Solution

The fourth proportional to 435,653.40, 653,480.10 and 404,160.60 is: 606,240.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,653.40 : 653,480.10 = 404,160.60 : x
  2. Step 2: Convert to fraction form
    435,653.40/653,480.10 = 404,160.60/x
  3. Step 3: Cross multiply
    435,653.40x = 653,480.10 × 404,160.60
  4. Step 4: Simplify right side
    435,653.40x = 264,110,909,304.06
  5. Step 5: Solve for x
    x = 264,110,909,304.06/435,653.40
  6. Step 6: Final answer
    x = 606,240.90

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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.