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Finding the Fourth Proportional to 624,014.40, 936,172.80 and 180,782.40

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Solution

The fourth proportional to 624,014.40, 936,172.80 and 180,782.40 is: 271,217.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,014.40 : 936,172.80 = 180,782.40 : x
  2. Step 2: Convert to fraction form
    624,014.40/936,172.80 = 180,782.40/x
  3. Step 3: Cross multiply
    624,014.40x = 936,172.80 × 180,782.40
  4. Step 4: Simplify right side
    624,014.40x = 169,243,565,598.72
  5. Step 5: Solve for x
    x = 169,243,565,598.72/624,014.40
  6. Step 6: Final answer
    x = 271,217.40

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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.