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Finding the Fourth Proportional to 476,151.54, 657,097.16 and 261,311.59

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Solution

The fourth proportional to 476,151.54, 657,097.16 and 261,311.59 is: 360,614.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,151.54 : 657,097.16 = 261,311.59 : x
  2. Step 2: Convert to fraction form
    476,151.54/657,097.16 = 261,311.59/x
  3. Step 3: Cross multiply
    476,151.54x = 657,097.16 × 261,311.59
  4. Step 4: Simplify right side
    476,151.54x = 171,707,103,664.08
  5. Step 5: Solve for x
    x = 171,707,103,664.08/476,151.54
  6. Step 6: Final answer
    x = 360,614.40

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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.