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Finding the Fourth Proportional to 635,306.60, 953,354.64 and 395,890.40

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Solution

The fourth proportional to 635,306.60, 953,354.64 and 395,890.40 is: 594,081.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,306.60 : 953,354.64 = 395,890.40 : x
  2. Step 2: Convert to fraction form
    635,306.60/953,354.64 = 395,890.40/x
  3. Step 3: Cross multiply
    635,306.60x = 953,354.64 × 395,890.40
  4. Step 4: Simplify right side
    635,306.60x = 377,423,949,771.46
  5. Step 5: Solve for x
    x = 377,423,949,771.46/635,306.60
  6. Step 6: Final answer
    x = 594,081.58

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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.