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Finding the Fourth Proportional to 476,651.41, 657,776.70 and 258,858.56

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Solution

The fourth proportional to 476,651.41, 657,776.70 and 258,858.56 is: 357,223.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,651.41 : 657,776.70 = 258,858.56 : x
  2. Step 2: Convert to fraction form
    476,651.41/657,776.70 = 258,858.56/x
  3. Step 3: Cross multiply
    476,651.41x = 657,776.70 × 258,858.56
  4. Step 4: Simplify right side
    476,651.41x = 170,271,129,158.00
  5. Step 5: Solve for x
    x = 170,271,129,158.00/476,651.41
  6. Step 6: Final answer
    x = 357,223.59

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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.