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Finding the Fourth Proportional to 431,990.90, 596,135.94 and 240,999.38

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Solution

The fourth proportional to 431,990.90, 596,135.94 and 240,999.38 is: 332,572.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,990.90 : 596,135.94 = 240,999.38 : x
  2. Step 2: Convert to fraction form
    431,990.90/596,135.94 = 240,999.38/x
  3. Step 3: Cross multiply
    431,990.90x = 596,135.94 × 240,999.38
  4. Step 4: Simplify right side
    431,990.90x = 143,668,391,935.72
  5. Step 5: Solve for x
    x = 143,668,391,935.72/431,990.90
  6. Step 6: Final answer
    x = 332,572.73

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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.