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Finding the Fourth Proportional to 539,609.26, 744,641.22 and 297,886.63

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Solution

The fourth proportional to 539,609.26, 744,641.22 and 297,886.63 is: 411,072.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,609.26 : 744,641.22 = 297,886.63 : x
  2. Step 2: Convert to fraction form
    539,609.26/744,641.22 = 297,886.63/x
  3. Step 3: Cross multiply
    539,609.26x = 744,641.22 × 297,886.63
  4. Step 4: Simplify right side
    539,609.26x = 221,818,663,584.89
  5. Step 5: Solve for x
    x = 221,818,663,584.89/539,609.26
  6. Step 6: Final answer
    x = 411,072.75

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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.