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Finding the Fourth Proportional to 620,200.30, 930,559.65 and 199,605.10

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Solution

The fourth proportional to 620,200.30, 930,559.65 and 199,605.10 is: 299,491.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,200.30 : 930,559.65 = 199,605.10 : x
  2. Step 2: Convert to fraction form
    620,200.30/930,559.65 = 199,605.10/x
  3. Step 3: Cross multiply
    620,200.30x = 930,559.65 × 199,605.10
  4. Step 4: Simplify right side
    620,200.30x = 185,744,451,994.22
  5. Step 5: Solve for x
    x = 185,744,451,994.22/620,200.30
  6. Step 6: Final answer
    x = 299,491.07

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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.