Home / 1,889,678.40-2,834,906.40-628,411.20

Finding the Fourth Proportional to 1,889,678.40, 2,834,906.40 and 628,411.20

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Solution

The fourth proportional to 1,889,678.40, 2,834,906.40 and 628,411.20 is: 942,746.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889,678.40 : 2,834,906.40 = 628,411.20 : x
  2. Step 2: Convert to fraction form
    1,889,678.40/2,834,906.40 = 628,411.20/x
  3. Step 3: Cross multiply
    1,889,678.40x = 2,834,906.40 × 628,411.20
  4. Step 4: Simplify right side
    1,889,678.40x = 1,781,486,932,711.68
  5. Step 5: Solve for x
    x = 1,781,486,932,711.68/1,889,678.40
  6. Step 6: Final answer
    x = 942,746.10

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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.