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Finding the Fourth Proportional to 370,714.86, 556,072.02 and 320,646.06

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Solution

The fourth proportional to 370,714.86, 556,072.02 and 320,646.06 is: 480,968.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,714.86 : 556,072.02 = 320,646.06 : x
  2. Step 2: Convert to fraction form
    370,714.86/556,072.02 = 320,646.06/x
  3. Step 3: Cross multiply
    370,714.86x = 556,072.02 × 320,646.06
  4. Step 4: Simplify right side
    370,714.86x = 178,302,302,289.24
  5. Step 5: Solve for x
    x = 178,302,302,289.24/370,714.86
  6. Step 6: Final answer
    x = 480,968.86

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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.