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Finding the Fourth Proportional to 623,450.16, 935,109.60 and 218,636.64

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Solution

The fourth proportional to 623,450.16, 935,109.60 and 218,636.64 is: 327,931.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,450.16 : 935,109.60 = 218,636.64 : x
  2. Step 2: Convert to fraction form
    623,450.16/935,109.60 = 218,636.64/x
  3. Step 3: Cross multiply
    623,450.16x = 935,109.60 × 218,636.64
  4. Step 4: Simplify right side
    623,450.16x = 204,449,220,975.74
  5. Step 5: Solve for x
    x = 204,449,220,975.74/623,450.16
  6. Step 6: Final answer
    x = 327,931.94

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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.