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Finding the Fourth Proportional to 656,348.84, 984,129.06 and 256,513.16

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Solution

The fourth proportional to 656,348.84, 984,129.06 and 256,513.16 is: 384,615.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,348.84 : 984,129.06 = 256,513.16 : x
  2. Step 2: Convert to fraction form
    656,348.84/984,129.06 = 256,513.16/x
  3. Step 3: Cross multiply
    656,348.84x = 984,129.06 × 256,513.16
  4. Step 4: Simplify right side
    656,348.84x = 252,442,055,028.43
  5. Step 5: Solve for x
    x = 252,442,055,028.43/656,348.84
  6. Step 6: Final answer
    x = 384,615.68

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Double scale
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Similar ratio
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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.