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Finding the Fourth Proportional to 355,930.40, 533,895.60 and 335,655.20

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Solution

The fourth proportional to 355,930.40, 533,895.60 and 335,655.20 is: 503,482.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,930.40 : 533,895.60 = 335,655.20 : x
  2. Step 2: Convert to fraction form
    355,930.40/533,895.60 = 335,655.20/x
  3. Step 3: Cross multiply
    355,930.40x = 533,895.60 × 335,655.20
  4. Step 4: Simplify right side
    355,930.40x = 179,204,834,397.12
  5. Step 5: Solve for x
    x = 179,204,834,397.12/355,930.40
  6. Step 6: Final answer
    x = 503,482.80

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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.