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Finding the Fourth Proportional to 476,215.92, 657,177.44 and 261,356.54

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Solution

The fourth proportional to 476,215.92, 657,177.44 and 261,356.54 is: 360,671.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,215.92 : 657,177.44 = 261,356.54 : x
  2. Step 2: Convert to fraction form
    476,215.92/657,177.44 = 261,356.54/x
  3. Step 3: Cross multiply
    476,215.92x = 657,177.44 × 261,356.54
  4. Step 4: Simplify right side
    476,215.92x = 171,757,617,291.79
  5. Step 5: Solve for x
    x = 171,757,617,291.79/476,215.92
  6. Step 6: Final answer
    x = 360,671.72

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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.