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Finding the Fourth Proportional to 476,149.81, 657,084.80 and 261,293.46

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Solution

The fourth proportional to 476,149.81, 657,084.80 and 261,293.46 is: 360,583.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,149.81 : 657,084.80 = 261,293.46 : x
  2. Step 2: Convert to fraction form
    476,149.81/657,084.80 = 261,293.46/x
  3. Step 3: Cross multiply
    476,149.81x = 657,084.80 × 261,293.46
  4. Step 4: Simplify right side
    476,149.81x = 171,691,960,905.41
  5. Step 5: Solve for x
    x = 171,691,960,905.41/476,149.81
  6. Step 6: Final answer
    x = 360,583.91

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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.