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Finding the Fourth Proportional to 359,346.84, 538,503.54 and 247,153.74

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Solution

The fourth proportional to 359,346.84, 538,503.54 and 247,153.74 is: 370,375.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,346.84 : 538,503.54 = 247,153.74 : x
  2. Step 2: Convert to fraction form
    359,346.84/538,503.54 = 247,153.74/x
  3. Step 3: Cross multiply
    359,346.84x = 538,503.54 × 247,153.74
  4. Step 4: Simplify right side
    359,346.84x = 133,093,163,914.24
  5. Step 5: Solve for x
    x = 133,093,163,914.24/359,346.84
  6. Step 6: Final answer
    x = 370,375.22

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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.