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Finding the Fourth Proportional to 476,149.54, 657,094.40 and 261,309.59

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Solution

The fourth proportional to 476,149.54, 657,094.40 and 261,309.59 is: 360,611.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,149.54 : 657,094.40 = 261,309.59 : x
  2. Step 2: Convert to fraction form
    476,149.54/657,094.40 = 261,309.59/x
  3. Step 3: Cross multiply
    476,149.54x = 657,094.40 × 261,309.59
  4. Step 4: Simplify right side
    476,149.54x = 171,705,071,538.38
  5. Step 5: Solve for x
    x = 171,705,071,538.38/476,149.54
  6. Step 6: Final answer
    x = 360,611.65

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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.