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Finding the Fourth Proportional to 608,784.22, 840,254.64 and 354,168.82

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Solution

The fourth proportional to 608,784.22, 840,254.64 and 354,168.82 is: 488,830.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,784.22 : 840,254.64 = 354,168.82 : x
  2. Step 2: Convert to fraction form
    608,784.22/840,254.64 = 354,168.82/x
  3. Step 3: Cross multiply
    608,784.22x = 840,254.64 × 354,168.82
  4. Step 4: Simplify right side
    608,784.22x = 297,591,994,348.33
  5. Step 5: Solve for x
    x = 297,591,994,348.33/608,784.22
  6. Step 6: Final answer
    x = 488,830.01

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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.