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Finding the Fourth Proportional to 539,447.80, 744,434.28 and 297,730.36

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Solution

The fourth proportional to 539,447.80, 744,434.28 and 297,730.36 is: 410,865.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,447.80 : 744,434.28 = 297,730.36 : x
  2. Step 2: Convert to fraction form
    539,447.80/744,434.28 = 297,730.36/x
  3. Step 3: Cross multiply
    539,447.80x = 744,434.28 × 297,730.36
  4. Step 4: Simplify right side
    539,447.80x = 221,640,686,180.74
  5. Step 5: Solve for x
    x = 221,640,686,180.74/539,447.80
  6. Step 6: Final answer
    x = 410,865.86

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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.