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Finding the Fourth Proportional to 539,348.79, 744,287.61 and 297,628.20

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Solution

The fourth proportional to 539,348.79, 744,287.61 and 297,628.20 is: 410,719.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,348.79 : 744,287.61 = 297,628.20 : x
  2. Step 2: Convert to fraction form
    539,348.79/744,287.61 = 297,628.20/x
  3. Step 3: Cross multiply
    539,348.79x = 744,287.61 × 297,628.20
  4. Step 4: Simplify right side
    539,348.79x = 221,520,981,646.60
  5. Step 5: Solve for x
    x = 221,520,981,646.60/539,348.79
  6. Step 6: Final answer
    x = 410,719.34

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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.