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Finding the Fourth Proportional to 624,742.20, 936,894.60 and 325,123.20

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Solution

The fourth proportional to 624,742.20, 936,894.60 and 325,123.20 is: 487,570.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,742.20 : 936,894.60 = 325,123.20 : x
  2. Step 2: Convert to fraction form
    624,742.20/936,894.60 = 325,123.20/x
  3. Step 3: Cross multiply
    624,742.20x = 936,894.60 × 325,123.20
  4. Step 4: Simplify right side
    624,742.20x = 304,606,170,414.72
  5. Step 5: Solve for x
    x = 304,606,170,414.72/624,742.20
  6. Step 6: Final answer
    x = 487,570.99

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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.