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Finding the Fourth Proportional to 539,025.71, 743,859 and 297,314.82

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Solution

The fourth proportional to 539,025.71, 743,859 and 297,314.82 is: 410,296.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,025.71 : 743,859 = 297,314.82 : x
  2. Step 2: Convert to fraction form
    539,025.71/743,859 = 297,314.82/x
  3. Step 3: Cross multiply
    539,025.71x = 743,859 × 297,314.82
  4. Step 4: Simplify right side
    539,025.71x = 221,160,304,690.38
  5. Step 5: Solve for x
    x = 221,160,304,690.38/539,025.71
  6. Step 6: Final answer
    x = 410,296.40

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Double scale
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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.