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Finding the Fourth Proportional to 487,426.94, 731,072.76 and 150,478.68

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Solution

The fourth proportional to 487,426.94, 731,072.76 and 150,478.68 is: 225,697.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,426.94 : 731,072.76 = 150,478.68 : x
  2. Step 2: Convert to fraction form
    487,426.94/731,072.76 = 150,478.68/x
  3. Step 3: Cross multiply
    487,426.94x = 731,072.76 × 150,478.68
  4. Step 4: Simplify right side
    487,426.94x = 110,010,863,908.76
  5. Step 5: Solve for x
    x = 110,010,863,908.76/487,426.94
  6. Step 6: Final answer
    x = 225,697.14

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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.