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Finding the Fourth Proportional to 611,909.68, 844,495.32 and 353,797.60

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Solution

The fourth proportional to 611,909.68, 844,495.32 and 353,797.60 is: 488,275.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,909.68 : 844,495.32 = 353,797.60 : x
  2. Step 2: Convert to fraction form
    611,909.68/844,495.32 = 353,797.60/x
  3. Step 3: Cross multiply
    611,909.68x = 844,495.32 × 353,797.60
  4. Step 4: Simplify right side
    611,909.68x = 298,780,417,427.23
  5. Step 5: Solve for x
    x = 298,780,417,427.23/611,909.68
  6. Step 6: Final answer
    x = 488,275.36

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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.