Home / 686,806.40-1,030,209.60-181,366.40

Finding the Fourth Proportional to 686,806.40, 1,030,209.60 and 181,366.40

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Solution

The fourth proportional to 686,806.40, 1,030,209.60 and 181,366.40 is: 272,049.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,806.40 : 1,030,209.60 = 181,366.40 : x
  2. Step 2: Convert to fraction form
    686,806.40/1,030,209.60 = 181,366.40/x
  3. Step 3: Cross multiply
    686,806.40x = 1,030,209.60 × 181,366.40
  4. Step 4: Simplify right side
    686,806.40x = 186,845,406,397.44
  5. Step 5: Solve for x
    x = 186,845,406,397.44/686,806.40
  6. Step 6: Final answer
    x = 272,049.60

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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.