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Finding the Fourth Proportional to 539,503.25, 744,514.55 and 297,785.88

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Solution

The fourth proportional to 539,503.25, 744,514.55 and 297,785.88 is: 410,944.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,503.25 : 744,514.55 = 297,785.88 : x
  2. Step 2: Convert to fraction form
    539,503.25/744,514.55 = 297,785.88/x
  3. Step 3: Cross multiply
    539,503.25x = 744,514.55 × 297,785.88
  4. Step 4: Simplify right side
    539,503.25x = 221,705,920,444.55
  5. Step 5: Solve for x
    x = 221,705,920,444.55/539,503.25
  6. Step 6: Final answer
    x = 410,944.55

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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.