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Finding the Fourth Proportional to 609,184, 840,557.28 and 394,294.24

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Solution

The fourth proportional to 609,184, 840,557.28 and 394,294.24 is: 544,050.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,184 : 840,557.28 = 394,294.24 : x
  2. Step 2: Convert to fraction form
    609,184/840,557.28 = 394,294.24/x
  3. Step 3: Cross multiply
    609,184x = 840,557.28 × 394,294.24
  4. Step 4: Simplify right side
    609,184x = 331,426,893,894.07
  5. Step 5: Solve for x
    x = 331,426,893,894.07/609,184
  6. Step 6: Final answer
    x = 544,050.56

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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.