Home / 686,799.70-1,030,199.55-651,807.70

Finding the Fourth Proportional to 686,799.70, 1,030,199.55 and 651,807.70

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Solution

The fourth proportional to 686,799.70, 1,030,199.55 and 651,807.70 is: 977,711.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,799.70 : 1,030,199.55 = 651,807.70 : x
  2. Step 2: Convert to fraction form
    686,799.70/1,030,199.55 = 651,807.70/x
  3. Step 3: Cross multiply
    686,799.70x = 1,030,199.55 × 651,807.70
  4. Step 4: Simplify right side
    686,799.70x = 671,491,999,226.54
  5. Step 5: Solve for x
    x = 671,491,999,226.54/686,799.70
  6. Step 6: Final answer
    x = 977,711.55

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Similar ratio
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1.5x scale

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.