Home / 686,999.90-1,030,499.85-610,892.30

Finding the Fourth Proportional to 686,999.90, 1,030,499.85 and 610,892.30

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Solution

The fourth proportional to 686,999.90, 1,030,499.85 and 610,892.30 is: 916,338.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,999.90 : 1,030,499.85 = 610,892.30 : x
  2. Step 2: Convert to fraction form
    686,999.90/1,030,499.85 = 610,892.30/x
  3. Step 3: Cross multiply
    686,999.90x = 1,030,499.85 × 610,892.30
  4. Step 4: Simplify right side
    686,999.90x = 629,524,423,516.16
  5. Step 5: Solve for x
    x = 629,524,423,516.16/686,999.90
  6. Step 6: Final answer
    x = 916,338.45

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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.