Home / 1,938,863.50-2,909,623.71-676,691.12

Finding the Fourth Proportional to 1,938,863.50, 2,909,623.71 and 676,691.12

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Solution

The fourth proportional to 1,938,863.50, 2,909,623.71 and 676,691.12 is: 1,015,500.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938,863.50 : 2,909,623.71 = 676,691.12 : x
  2. Step 2: Convert to fraction form
    1,938,863.50/2,909,623.71 = 676,691.12/x
  3. Step 3: Cross multiply
    1,938,863.50x = 2,909,623.71 × 676,691.12
  4. Step 4: Simplify right side
    1,938,863.50x = 1,968,916,527,098.46
  5. Step 5: Solve for x
    x = 1,968,916,527,098.46/1,938,863.50
  6. Step 6: Final answer
    x = 1,015,500.33

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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.