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Finding the Fourth Proportional to 612,933.60, 919,400.40 and 169,701.60

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Solution

The fourth proportional to 612,933.60, 919,400.40 and 169,701.60 is: 254,552.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,933.60 : 919,400.40 = 169,701.60 : x
  2. Step 2: Convert to fraction form
    612,933.60/919,400.40 = 169,701.60/x
  3. Step 3: Cross multiply
    612,933.60x = 919,400.40 × 169,701.60
  4. Step 4: Simplify right side
    612,933.60x = 156,023,718,920.64
  5. Step 5: Solve for x
    x = 156,023,718,920.64/612,933.60
  6. Step 6: Final answer
    x = 254,552.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.