Home / 991,772.55-1,486,786.76-393,154.20

Finding the Fourth Proportional to 991,772.55, 1,486,786.76 and 393,154.20

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Solution

The fourth proportional to 991,772.55, 1,486,786.76 and 393,154.20 is: 589,385.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,772.55 : 1,486,786.76 = 393,154.20 : x
  2. Step 2: Convert to fraction form
    991,772.55/1,486,786.76 = 393,154.20/x
  3. Step 3: Cross multiply
    991,772.55x = 1,486,786.76 × 393,154.20
  4. Step 4: Simplify right side
    991,772.55x = 584,536,463,898.24
  5. Step 5: Solve for x
    x = 584,536,463,898.24/991,772.55
  6. Step 6: Final answer
    x = 589,385.60

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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.