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Finding the Fourth Proportional to 453,528.60, 679,636.80 and 200,602.05

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Solution

The fourth proportional to 453,528.60, 679,636.80 and 200,602.05 is: 300,612.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,528.60 : 679,636.80 = 200,602.05 : x
  2. Step 2: Convert to fraction form
    453,528.60/679,636.80 = 200,602.05/x
  3. Step 3: Cross multiply
    453,528.60x = 679,636.80 × 200,602.05
  4. Step 4: Simplify right side
    453,528.60x = 136,336,535,335.44
  5. Step 5: Solve for x
    x = 136,336,535,335.44/453,528.60
  6. Step 6: Final answer
    x = 300,612.87

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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.