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Finding the Fourth Proportional to 462,003.60, 645,230.40 and 462,003.60

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Solution

The fourth proportional to 462,003.60, 645,230.40 and 462,003.60 is: 645,230.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,003.60 : 645,230.40 = 462,003.60 : x
  2. Step 2: Convert to fraction form
    462,003.60/645,230.40 = 462,003.60/x
  3. Step 3: Cross multiply
    462,003.60x = 645,230.40 × 462,003.60
  4. Step 4: Simplify right side
    462,003.60x = 298,098,767,629.44
  5. Step 5: Solve for x
    x = 298,098,767,629.44/462,003.60
  6. Step 6: Final answer
    x = 645,230.40

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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.