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Finding the Fourth Proportional to 609,274.88, 840,237.44 and 417,950.72

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Solution

The fourth proportional to 609,274.88, 840,237.44 and 417,950.72 is: 576,386.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,274.88 : 840,237.44 = 417,950.72 : x
  2. Step 2: Convert to fraction form
    609,274.88/840,237.44 = 417,950.72/x
  3. Step 3: Cross multiply
    609,274.88x = 840,237.44 × 417,950.72
  4. Step 4: Simplify right side
    609,274.88x = 351,177,843,018.96
  5. Step 5: Solve for x
    x = 351,177,843,018.96/609,274.88
  6. Step 6: Final answer
    x = 576,386.54

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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.