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Finding the Fourth Proportional to 673,620.76, 929,573.38 and 401,548.38

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Solution

The fourth proportional to 673,620.76, 929,573.38 and 401,548.38 is: 554,122.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,620.76 : 929,573.38 = 401,548.38 : x
  2. Step 2: Convert to fraction form
    673,620.76/929,573.38 = 401,548.38/x
  3. Step 3: Cross multiply
    673,620.76x = 929,573.38 × 401,548.38
  4. Step 4: Simplify right side
    673,620.76x = 373,268,684,830.12
  5. Step 5: Solve for x
    x = 373,268,684,830.12/673,620.76
  6. Step 6: Final answer
    x = 554,122.89

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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.