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Finding the Fourth Proportional to 539,666.91, 744,725.52 and 297,945.09

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Solution

The fourth proportional to 539,666.91, 744,725.52 and 297,945.09 is: 411,156.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,666.91 : 744,725.52 = 297,945.09 : x
  2. Step 2: Convert to fraction form
    539,666.91/744,725.52 = 297,945.09/x
  3. Step 3: Cross multiply
    539,666.91x = 744,725.52 × 297,945.09
  4. Step 4: Simplify right side
    539,666.91x = 221,887,312,081.70
  5. Step 5: Solve for x
    x = 221,887,312,081.70/539,666.91
  6. Step 6: Final answer
    x = 411,156.04

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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.