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Finding the Fourth Proportional to 624,246.60, 936,369.90 and 340,811.40

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Solution

The fourth proportional to 624,246.60, 936,369.90 and 340,811.40 is: 511,217.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,246.60 : 936,369.90 = 340,811.40 : x
  2. Step 2: Convert to fraction form
    624,246.60/936,369.90 = 340,811.40/x
  3. Step 3: Cross multiply
    624,246.60x = 936,369.90 × 340,811.40
  4. Step 4: Simplify right side
    624,246.60x = 319,125,536,536.86
  5. Step 5: Solve for x
    x = 319,125,536,536.86/624,246.60
  6. Step 6: Final answer
    x = 511,217.10

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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.