Home / 878,402.16-1,212,195.60-475,994.16

Finding the Fourth Proportional to 878,402.16, 1,212,195.60 and 475,994.16

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Solution

The fourth proportional to 878,402.16, 1,212,195.60 and 475,994.16 is: 656,872.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,402.16 : 1,212,195.60 = 475,994.16 : x
  2. Step 2: Convert to fraction form
    878,402.16/1,212,195.60 = 475,994.16/x
  3. Step 3: Cross multiply
    878,402.16x = 1,212,195.60 × 475,994.16
  4. Step 4: Simplify right side
    878,402.16x = 576,998,026,377.70
  5. Step 5: Solve for x
    x = 576,998,026,377.70/878,402.16
  6. Step 6: Final answer
    x = 656,872.28

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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.