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Finding the Fourth Proportional to 620,581.20, 930,925.20 and 171,302.16

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Solution

The fourth proportional to 620,581.20, 930,925.20 and 171,302.16 is: 256,967.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,581.20 : 930,925.20 = 171,302.16 : x
  2. Step 2: Convert to fraction form
    620,581.20/930,925.20 = 171,302.16/x
  3. Step 3: Cross multiply
    620,581.20x = 930,925.20 × 171,302.16
  4. Step 4: Simplify right side
    620,581.20x = 159,469,497,558.43
  5. Step 5: Solve for x
    x = 159,469,497,558.43/620,581.20
  6. Step 6: Final answer
    x = 256,967.98

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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.