Home / 1,280,386.20-1,918,052.10-649,752.60

Finding the Fourth Proportional to 1,280,386.20, 1,918,052.10 and 649,752.60

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Solution

The fourth proportional to 1,280,386.20, 1,918,052.10 and 649,752.60 is: 973,346.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,386.20 : 1,918,052.10 = 649,752.60 : x
  2. Step 2: Convert to fraction form
    1,280,386.20/1,918,052.10 = 649,752.60/x
  3. Step 3: Cross multiply
    1,280,386.20x = 1,918,052.10 × 649,752.60
  4. Step 4: Simplify right side
    1,280,386.20x = 1,246,259,338,910.46
  5. Step 5: Solve for x
    x = 1,246,259,338,910.46/1,280,386.20
  6. Step 6: Final answer
    x = 973,346.43

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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.