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Finding the Fourth Proportional to 442,803.60, 664,205.40 and 176,605.20

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Solution

The fourth proportional to 442,803.60, 664,205.40 and 176,605.20 is: 264,907.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,803.60 : 664,205.40 = 176,605.20 : x
  2. Step 2: Convert to fraction form
    442,803.60/664,205.40 = 176,605.20/x
  3. Step 3: Cross multiply
    442,803.60x = 664,205.40 × 176,605.20
  4. Step 4: Simplify right side
    442,803.60x = 117,302,127,508.08
  5. Step 5: Solve for x
    x = 117,302,127,508.08/442,803.60
  6. Step 6: Final answer
    x = 264,907.80

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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.