Home / 991,684.80-1,486,654.76-393,066.14

Finding the Fourth Proportional to 991,684.80, 1,486,654.76 and 393,066.14

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Solution

The fourth proportional to 991,684.80, 1,486,654.76 and 393,066.14 is: 589,253.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,684.80 : 1,486,654.76 = 393,066.14 : x
  2. Step 2: Convert to fraction form
    991,684.80/1,486,654.76 = 393,066.14/x
  3. Step 3: Cross multiply
    991,684.80x = 1,486,654.76 × 393,066.14
  4. Step 4: Simplify right side
    991,684.80x = 584,353,648,025.83
  5. Step 5: Solve for x
    x = 584,353,648,025.83/991,684.80
  6. Step 6: Final answer
    x = 589,253.41

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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.