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Finding the Fourth Proportional to 673,801.71, 929,866.70 and 383,454.92

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Solution

The fourth proportional to 673,801.71, 929,866.70 and 383,454.92 is: 529,179.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,801.71 : 929,866.70 = 383,454.92 : x
  2. Step 2: Convert to fraction form
    673,801.71/929,866.70 = 383,454.92/x
  3. Step 3: Cross multiply
    673,801.71x = 929,866.70 × 383,454.92
  4. Step 4: Simplify right side
    673,801.71x = 356,561,964,051.39
  5. Step 5: Solve for x
    x = 356,561,964,051.39/673,801.71
  6. Step 6: Final answer
    x = 529,179.37

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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.