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Finding the Fourth Proportional to 319,287.32, 440,596.40 and 176,048.54

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Solution

The fourth proportional to 319,287.32, 440,596.40 and 176,048.54 is: 242,935.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,287.32 : 440,596.40 = 176,048.54 : x
  2. Step 2: Convert to fraction form
    319,287.32/440,596.40 = 176,048.54/x
  3. Step 3: Cross multiply
    319,287.32x = 440,596.40 × 176,048.54
  4. Step 4: Simplify right side
    319,287.32x = 77,566,351,518.27
  5. Step 5: Solve for x
    x = 77,566,351,518.27/319,287.32
  6. Step 6: Final answer
    x = 242,935.90

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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.