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Finding the Fourth Proportional to 319,072.76, 440,323.32 and 175,837.92

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Solution

The fourth proportional to 319,072.76, 440,323.32 and 175,837.92 is: 242,657.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,072.76 : 440,323.32 = 175,837.92 : x
  2. Step 2: Convert to fraction form
    319,072.76/440,323.32 = 175,837.92/x
  3. Step 3: Cross multiply
    319,072.76x = 440,323.32 × 175,837.92
  4. Step 4: Simplify right side
    319,072.76x = 77,425,536,716.29
  5. Step 5: Solve for x
    x = 77,425,536,716.29/319,072.76
  6. Step 6: Final answer
    x = 242,657.93

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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.