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Finding the Fourth Proportional to 622,938, 934,523.64 and 290,514

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Solution

The fourth proportional to 622,938, 934,523.64 and 290,514 is: 435,825.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,938 : 934,523.64 = 290,514 : x
  2. Step 2: Convert to fraction form
    622,938/934,523.64 = 290,514/x
  3. Step 3: Cross multiply
    622,938x = 934,523.64 × 290,514
  4. Step 4: Simplify right side
    622,938x = 271,492,200,750.96
  5. Step 5: Solve for x
    x = 271,492,200,750.96/622,938
  6. Step 6: Final answer
    x = 435,825.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.