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Finding the Fourth Proportional to 419,497.27, 578,887.53 and 245,083.65

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Solution

The fourth proportional to 419,497.27, 578,887.53 and 245,083.65 is: 338,204.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,497.27 : 578,887.53 = 245,083.65 : x
  2. Step 2: Convert to fraction form
    419,497.27/578,887.53 = 245,083.65/x
  3. Step 3: Cross multiply
    419,497.27x = 578,887.53 × 245,083.65
  4. Step 4: Simplify right side
    419,497.27x = 141,875,868,791.89
  5. Step 5: Solve for x
    x = 141,875,868,791.89/419,497.27
  6. Step 6: Final answer
    x = 338,204.51

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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.