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Finding the Fourth Proportional to 476,295.80, 657,291.92 and 261,455.85

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Solution

The fourth proportional to 476,295.80, 657,291.92 and 261,455.85 is: 360,811.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,295.80 : 657,291.92 = 261,455.85 : x
  2. Step 2: Convert to fraction form
    476,295.80/657,291.92 = 261,455.85/x
  3. Step 3: Cross multiply
    476,295.80x = 657,291.92 × 261,455.85
  4. Step 4: Simplify right side
    476,295.80x = 171,852,816,334.45
  5. Step 5: Solve for x
    x = 171,852,816,334.45/476,295.80
  6. Step 6: Final answer
    x = 360,811.11

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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.