Home / 686,815.40-1,030,223.10-610,707.80

Finding the Fourth Proportional to 686,815.40, 1,030,223.10 and 610,707.80

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Solution

The fourth proportional to 686,815.40, 1,030,223.10 and 610,707.80 is: 916,061.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,815.40 : 1,030,223.10 = 610,707.80 : x
  2. Step 2: Convert to fraction form
    686,815.40/1,030,223.10 = 610,707.80/x
  3. Step 3: Cross multiply
    686,815.40x = 1,030,223.10 × 610,707.80
  4. Step 4: Simplify right side
    686,815.40x = 629,165,282,910.18
  5. Step 5: Solve for x
    x = 629,165,282,910.18/686,815.40
  6. Step 6: Final answer
    x = 916,061.70

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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.