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Finding the Fourth Proportional to 359,281.80, 538,922.70 and 303,985.80

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Solution

The fourth proportional to 359,281.80, 538,922.70 and 303,985.80 is: 455,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,281.80 : 538,922.70 = 303,985.80 : x
  2. Step 2: Convert to fraction form
    359,281.80/538,922.70 = 303,985.80/x
  3. Step 3: Cross multiply
    359,281.80x = 538,922.70 × 303,985.80
  4. Step 4: Simplify right side
    359,281.80x = 163,824,848,097.66
  5. Step 5: Solve for x
    x = 163,824,848,097.66/359,281.80
  6. Step 6: Final answer
    x = 455,978.70

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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.