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Finding the Fourth Proportional to 319,163.76, 440,455.32 and 175,925.52

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Solution

The fourth proportional to 319,163.76, 440,455.32 and 175,925.52 is: 242,782.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,163.76 : 440,455.32 = 175,925.52 : x
  2. Step 2: Convert to fraction form
    319,163.76/440,455.32 = 175,925.52/x
  3. Step 3: Cross multiply
    319,163.76x = 440,455.32 × 175,925.52
  4. Step 4: Simplify right side
    319,163.76x = 77,487,331,207.77
  5. Step 5: Solve for x
    x = 77,487,331,207.77/319,163.76
  6. Step 6: Final answer
    x = 242,782.36

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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.