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Finding the Fourth Proportional to 501,789.79, 692,154.92 and 297,696.21

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Solution

The fourth proportional to 501,789.79, 692,154.92 and 297,696.21 is: 410,633.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,789.79 : 692,154.92 = 297,696.21 : x
  2. Step 2: Convert to fraction form
    501,789.79/692,154.92 = 297,696.21/x
  3. Step 3: Cross multiply
    501,789.79x = 692,154.92 × 297,696.21
  4. Step 4: Simplify right side
    501,789.79x = 206,051,898,458.88
  5. Step 5: Solve for x
    x = 206,051,898,458.88/501,789.79
  6. Step 6: Final answer
    x = 410,633.90

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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.