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Finding the Fourth Proportional to 319,211.87, 440,513.71 and 175,968.77

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Solution

The fourth proportional to 319,211.87, 440,513.71 and 175,968.77 is: 242,837.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,211.87 : 440,513.71 = 175,968.77 : x
  2. Step 2: Convert to fraction form
    319,211.87/440,513.71 = 175,968.77/x
  3. Step 3: Cross multiply
    319,211.87x = 440,513.71 × 175,968.77
  4. Step 4: Simplify right side
    319,211.87x = 77,516,653,074.35
  5. Step 5: Solve for x
    x = 77,516,653,074.35/319,211.87
  6. Step 6: Final answer
    x = 242,837.63

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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.