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Finding the Fourth Proportional to 364,516.20, 546,774.30 and 317,860.20

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Solution

The fourth proportional to 364,516.20, 546,774.30 and 317,860.20 is: 476,790.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,516.20 : 546,774.30 = 317,860.20 : x
  2. Step 2: Convert to fraction form
    364,516.20/546,774.30 = 317,860.20/x
  3. Step 3: Cross multiply
    364,516.20x = 546,774.30 × 317,860.20
  4. Step 4: Simplify right side
    364,516.20x = 173,797,788,352.86
  5. Step 5: Solve for x
    x = 173,797,788,352.86/364,516.20
  6. Step 6: Final answer
    x = 476,790.30

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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.