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Finding the Fourth Proportional to 609,254.95, 840,659.77 and 351,095.70

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Solution

The fourth proportional to 609,254.95, 840,659.77 and 351,095.70 is: 484,447.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,254.95 : 840,659.77 = 351,095.70 : x
  2. Step 2: Convert to fraction form
    609,254.95/840,659.77 = 351,095.70/x
  3. Step 3: Cross multiply
    609,254.95x = 840,659.77 × 351,095.70
  4. Step 4: Simplify right side
    609,254.95x = 295,152,030,409.99
  5. Step 5: Solve for x
    x = 295,152,030,409.99/609,254.95
  6. Step 6: Final answer
    x = 484,447.49

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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.