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Finding the Fourth Proportional to 3,163,734.18, 4,746,410.19 and 919,872.18

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Solution

The fourth proportional to 3,163,734.18, 4,746,410.19 and 919,872.18 is: 1,380,043.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163,734.18 : 4,746,410.19 = 919,872.18 : x
  2. Step 2: Convert to fraction form
    3,163,734.18/4,746,410.19 = 919,872.18/x
  3. Step 3: Cross multiply
    3,163,734.18x = 4,746,410.19 × 919,872.18
  4. Step 4: Simplify right side
    3,163,734.18x = 4,366,090,688,649.51
  5. Step 5: Solve for x
    x = 4,366,090,688,649.51/3,163,734.18
  6. Step 6: Final answer
    x = 1,380,043.47

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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.