Home / 998,105.12-1,376,994.48-615,467.60

Finding the Fourth Proportional to 998,105.12, 1,376,994.48 and 615,467.60

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Solution

The fourth proportional to 998,105.12, 1,376,994.48 and 615,467.60 is: 849,104.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,105.12 : 1,376,994.48 = 615,467.60 : x
  2. Step 2: Convert to fraction form
    998,105.12/1,376,994.48 = 615,467.60/x
  3. Step 3: Cross multiply
    998,105.12x = 1,376,994.48 × 615,467.60
  4. Step 4: Simplify right side
    998,105.12x = 847,495,487,818.85
  5. Step 5: Solve for x
    x = 847,495,487,818.85/998,105.12
  6. Step 6: Final answer
    x = 849,104.44

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Double scale
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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.