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Finding the Fourth Proportional to 623,980.40, 936,121.80 and 180,748.40

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Solution

The fourth proportional to 623,980.40, 936,121.80 and 180,748.40 is: 271,166.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,980.40 : 936,121.80 = 180,748.40 : x
  2. Step 2: Convert to fraction form
    623,980.40/936,121.80 = 180,748.40/x
  3. Step 3: Cross multiply
    623,980.40x = 936,121.80 × 180,748.40
  4. Step 4: Simplify right side
    623,980.40x = 169,202,517,555.12
  5. Step 5: Solve for x
    x = 169,202,517,555.12/623,980.40
  6. Step 6: Final answer
    x = 271,166.40

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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.