Home / 686,331.10-1,030,677.63-656,806.60

Finding the Fourth Proportional to 686,331.10, 1,030,677.63 and 656,806.60

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Solution

The fourth proportional to 686,331.10, 1,030,677.63 and 656,806.60 is: 986,340.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,331.10 : 1,030,677.63 = 656,806.60 : x
  2. Step 2: Convert to fraction form
    686,331.10/1,030,677.63 = 656,806.60/x
  3. Step 3: Cross multiply
    686,331.10x = 1,030,677.63 × 656,806.60
  4. Step 4: Simplify right side
    686,331.10x = 676,955,869,856.36
  5. Step 5: Solve for x
    x = 676,955,869,856.36/686,331.10
  6. Step 6: Final answer
    x = 986,340.08

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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.