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Finding the Fourth Proportional to 368,453.20, 552,679.80 and 191,306.20

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Solution

The fourth proportional to 368,453.20, 552,679.80 and 191,306.20 is: 286,959.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,453.20 : 552,679.80 = 191,306.20 : x
  2. Step 2: Convert to fraction form
    368,453.20/552,679.80 = 191,306.20/x
  3. Step 3: Cross multiply
    368,453.20x = 552,679.80 × 191,306.20
  4. Step 4: Simplify right side
    368,453.20x = 105,731,072,354.76
  5. Step 5: Solve for x
    x = 105,731,072,354.76/368,453.20
  6. Step 6: Final answer
    x = 286,959.30

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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.