Home / 806,645.60-1,209,968.40-617,688.80

Finding the Fourth Proportional to 806,645.60, 1,209,968.40 and 617,688.80

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Solution

The fourth proportional to 806,645.60, 1,209,968.40 and 617,688.80 is: 926,533.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,645.60 : 1,209,968.40 = 617,688.80 : x
  2. Step 2: Convert to fraction form
    806,645.60/1,209,968.40 = 617,688.80/x
  3. Step 3: Cross multiply
    806,645.60x = 1,209,968.40 × 617,688.80
  4. Step 4: Simplify right side
    806,645.60x = 747,383,929,033.92
  5. Step 5: Solve for x
    x = 747,383,929,033.92/806,645.60
  6. Step 6: Final answer
    x = 926,533.20

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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.