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Finding the Fourth Proportional to 476,158.56, 657,108.72 and 261,286.08

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Solution

The fourth proportional to 476,158.56, 657,108.72 and 261,286.08 is: 360,580.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,158.56 : 657,108.72 = 261,286.08 : x
  2. Step 2: Convert to fraction form
    476,158.56/657,108.72 = 261,286.08/x
  3. Step 3: Cross multiply
    476,158.56x = 657,108.72 × 261,286.08
  4. Step 4: Simplify right side
    476,158.56x = 171,693,361,582.62
  5. Step 5: Solve for x
    x = 171,693,361,582.62/476,158.56
  6. Step 6: Final answer
    x = 360,580.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.