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Finding the Fourth Proportional to 484,860.81, 727,405.70 and 152,436.81

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Solution

The fourth proportional to 484,860.81, 727,405.70 and 152,436.81 is: 228,691.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,860.81 : 727,405.70 = 152,436.81 : x
  2. Step 2: Convert to fraction form
    484,860.81/727,405.70 = 152,436.81/x
  3. Step 3: Cross multiply
    484,860.81x = 727,405.70 × 152,436.81
  4. Step 4: Simplify right side
    484,860.81x = 110,883,403,721.63
  5. Step 5: Solve for x
    x = 110,883,403,721.63/484,860.81
  6. Step 6: Final answer
    x = 228,691.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.