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Finding the Fourth Proportional to 672,714.45, 928,353.24 and 366,788.34

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Solution

The fourth proportional to 672,714.45, 928,353.24 and 366,788.34 is: 506,171.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,714.45 : 928,353.24 = 366,788.34 : x
  2. Step 2: Convert to fraction form
    672,714.45/928,353.24 = 366,788.34/x
  3. Step 3: Cross multiply
    672,714.45x = 928,353.24 × 366,788.34
  4. Step 4: Simplify right side
    672,714.45x = 340,509,143,833.22
  5. Step 5: Solve for x
    x = 340,509,143,833.22/672,714.45
  6. Step 6: Final answer
    x = 506,171.89

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.