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Finding the Fourth Proportional to 457,241.39, 630,993.15 and 253,305.53

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Solution

The fourth proportional to 457,241.39, 630,993.15 and 253,305.53 is: 349,561.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,241.39 : 630,993.15 = 253,305.53 : x
  2. Step 2: Convert to fraction form
    457,241.39/630,993.15 = 253,305.53/x
  3. Step 3: Cross multiply
    457,241.39x = 630,993.15 × 253,305.53
  4. Step 4: Simplify right side
    457,241.39x = 159,834,054,287.12
  5. Step 5: Solve for x
    x = 159,834,054,287.12/457,241.39
  6. Step 6: Final answer
    x = 349,561.65

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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.