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Finding the Fourth Proportional to 200,572.20, 280,276.20 and 200,572.20

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Solution

The fourth proportional to 200,572.20, 280,276.20 and 200,572.20 is: 280,276.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,572.20 : 280,276.20 = 200,572.20 : x
  2. Step 2: Convert to fraction form
    200,572.20/280,276.20 = 200,572.20/x
  3. Step 3: Cross multiply
    200,572.20x = 280,276.20 × 200,572.20
  4. Step 4: Simplify right side
    200,572.20x = 56,215,614,041.64
  5. Step 5: Solve for x
    x = 56,215,614,041.64/200,572.20
  6. Step 6: Final answer
    x = 280,276.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.