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Finding the Fourth Proportional to 624,243.40, 936,689.10 and 291,819.40

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Solution

The fourth proportional to 624,243.40, 936,689.10 and 291,819.40 is: 437,880.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,243.40 : 936,689.10 = 291,819.40 : x
  2. Step 2: Convert to fraction form
    624,243.40/936,689.10 = 291,819.40/x
  3. Step 3: Cross multiply
    624,243.40x = 936,689.10 × 291,819.40
  4. Step 4: Simplify right side
    624,243.40x = 273,344,051,148.54
  5. Step 5: Solve for x
    x = 273,344,051,148.54/624,243.40
  6. Step 6: Final answer
    x = 437,880.56

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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.