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Finding the Fourth Proportional to 433,074.20, 648,833.70 and 370,866.20

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Solution

The fourth proportional to 433,074.20, 648,833.70 and 370,866.20 is: 555,633.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,074.20 : 648,833.70 = 370,866.20 : x
  2. Step 2: Convert to fraction form
    433,074.20/648,833.70 = 370,866.20/x
  3. Step 3: Cross multiply
    433,074.20x = 648,833.70 × 370,866.20
  4. Step 4: Simplify right side
    433,074.20x = 240,630,488,750.94
  5. Step 5: Solve for x
    x = 240,630,488,750.94/433,074.20
  6. Step 6: Final answer
    x = 555,633.40

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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.