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Finding the Fourth Proportional to 539,351.19, 744,320.40 and 297,649.38

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Solution

The fourth proportional to 539,351.19, 744,320.40 and 297,649.38 is: 410,764.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,351.19 : 744,320.40 = 297,649.38 : x
  2. Step 2: Convert to fraction form
    539,351.19/744,320.40 = 297,649.38/x
  3. Step 3: Cross multiply
    539,351.19x = 744,320.40 × 297,649.38
  4. Step 4: Simplify right side
    539,351.19x = 221,546,505,581.35
  5. Step 5: Solve for x
    x = 221,546,505,581.35/539,351.19
  6. Step 6: Final answer
    x = 410,764.84

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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.