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Finding the Fourth Proportional to 359,052.30, 538,578.45 and 219,084.30

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Solution

The fourth proportional to 359,052.30, 538,578.45 and 219,084.30 is: 328,626.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,052.30 : 538,578.45 = 219,084.30 : x
  2. Step 2: Convert to fraction form
    359,052.30/538,578.45 = 219,084.30/x
  3. Step 3: Cross multiply
    359,052.30x = 538,578.45 × 219,084.30
  4. Step 4: Simplify right side
    359,052.30x = 117,994,082,713.34
  5. Step 5: Solve for x
    x = 117,994,082,713.34/359,052.30
  6. Step 6: Final answer
    x = 328,626.45

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Similar ratio
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1.5x scale

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.