Home / 878,583.40-1,314,959.10-638,013.40

Finding the Fourth Proportional to 878,583.40, 1,314,959.10 and 638,013.40

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Solution

The fourth proportional to 878,583.40, 1,314,959.10 and 638,013.40 is: 954,902.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,583.40 : 1,314,959.10 = 638,013.40 : x
  2. Step 2: Convert to fraction form
    878,583.40/1,314,959.10 = 638,013.40/x
  3. Step 3: Cross multiply
    878,583.40x = 1,314,959.10 × 638,013.40
  4. Step 4: Simplify right side
    878,583.40x = 838,961,526,251.94
  5. Step 5: Solve for x
    x = 838,961,526,251.94/878,583.40
  6. Step 6: Final answer
    x = 954,902.55

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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.