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Finding the Fourth Proportional to 393,437.70, 590,156.55 and 363,257.10

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Solution

The fourth proportional to 393,437.70, 590,156.55 and 363,257.10 is: 544,885.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,437.70 : 590,156.55 = 363,257.10 : x
  2. Step 2: Convert to fraction form
    393,437.70/590,156.55 = 363,257.10/x
  3. Step 3: Cross multiply
    393,437.70x = 590,156.55 × 363,257.10
  4. Step 4: Simplify right side
    393,437.70x = 214,378,556,899.01
  5. Step 5: Solve for x
    x = 214,378,556,899.01/393,437.70
  6. Step 6: Final answer
    x = 544,885.65

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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.