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Finding the Fourth Proportional to 623,952.70, 936,101.85 and 414,000.70

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Solution

The fourth proportional to 623,952.70, 936,101.85 and 414,000.70 is: 621,115.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,952.70 : 936,101.85 = 414,000.70 : x
  2. Step 2: Convert to fraction form
    623,952.70/936,101.85 = 414,000.70/x
  3. Step 3: Cross multiply
    623,952.70x = 936,101.85 × 414,000.70
  4. Step 4: Simplify right side
    623,952.70x = 387,546,821,171.30
  5. Step 5: Solve for x
    x = 387,546,821,171.30/623,952.70
  6. Step 6: Final answer
    x = 621,115.71

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1.5x scale

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.