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Finding the Fourth Proportional to 545,907.05, 753,344.10 and 304,199.81

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Solution

The fourth proportional to 545,907.05, 753,344.10 and 304,199.81 is: 419,791.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,907.05 : 753,344.10 = 304,199.81 : x
  2. Step 2: Convert to fraction form
    545,907.05/753,344.10 = 304,199.81/x
  3. Step 3: Cross multiply
    545,907.05x = 753,344.10 × 304,199.81
  4. Step 4: Simplify right side
    545,907.05x = 229,167,132,084.62
  5. Step 5: Solve for x
    x = 229,167,132,084.62/545,907.05
  6. Step 6: Final answer
    x = 419,791.49

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Double scale
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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.