Home / 991,765.20-1,487,647.80-693,166.80

Finding the Fourth Proportional to 991,765.20, 1,487,647.80 and 693,166.80

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Solution

The fourth proportional to 991,765.20, 1,487,647.80 and 693,166.80 is: 1,039,750.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,765.20 : 1,487,647.80 = 693,166.80 : x
  2. Step 2: Convert to fraction form
    991,765.20/1,487,647.80 = 693,166.80/x
  3. Step 3: Cross multiply
    991,765.20x = 1,487,647.80 × 693,166.80
  4. Step 4: Simplify right side
    991,765.20x = 1,031,188,065,053.04
  5. Step 5: Solve for x
    x = 1,031,188,065,053.04/991,765.20
  6. Step 6: Final answer
    x = 1,039,750.20

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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.