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Finding the Fourth Proportional to 459,602.80, 689,404.20 and 341,504.80

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Solution

The fourth proportional to 459,602.80, 689,404.20 and 341,504.80 is: 512,257.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,602.80 : 689,404.20 = 341,504.80 : x
  2. Step 2: Convert to fraction form
    459,602.80/689,404.20 = 341,504.80/x
  3. Step 3: Cross multiply
    459,602.80x = 689,404.20 × 341,504.80
  4. Step 4: Simplify right side
    459,602.80x = 235,434,843,440.16
  5. Step 5: Solve for x
    x = 235,434,843,440.16/459,602.80
  6. Step 6: Final answer
    x = 512,257.20

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Similar ratio
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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.