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Finding the Fourth Proportional to 443,809.60, 665,714.40 and 372,950.80

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Solution

The fourth proportional to 443,809.60, 665,714.40 and 372,950.80 is: 559,426.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,809.60 : 665,714.40 = 372,950.80 : x
  2. Step 2: Convert to fraction form
    443,809.60/665,714.40 = 372,950.80/x
  3. Step 3: Cross multiply
    443,809.60x = 665,714.40 × 372,950.80
  4. Step 4: Simplify right side
    443,809.60x = 248,278,718,051.52
  5. Step 5: Solve for x
    x = 248,278,718,051.52/443,809.60
  6. Step 6: Final answer
    x = 559,426.20

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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.