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Finding the Fourth Proportional to 319,257.96, 440,595.96 and 176,017.80

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Solution

The fourth proportional to 319,257.96, 440,595.96 and 176,017.80 is: 242,915.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,257.96 : 440,595.96 = 176,017.80 : x
  2. Step 2: Convert to fraction form
    319,257.96/440,595.96 = 176,017.80/x
  3. Step 3: Cross multiply
    319,257.96x = 440,595.96 × 176,017.80
  4. Step 4: Simplify right side
    319,257.96x = 77,552,731,568.09
  5. Step 5: Solve for x
    x = 77,552,731,568.09/319,257.96
  6. Step 6: Final answer
    x = 242,915.58

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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.