Home / 686,585.10-1,029,877.65-613,101.90

Finding the Fourth Proportional to 686,585.10, 1,029,877.65 and 613,101.90

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Solution

The fourth proportional to 686,585.10, 1,029,877.65 and 613,101.90 is: 919,652.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,585.10 : 1,029,877.65 = 613,101.90 : x
  2. Step 2: Convert to fraction form
    686,585.10/1,029,877.65 = 613,101.90/x
  3. Step 3: Cross multiply
    686,585.10x = 1,029,877.65 × 613,101.90
  4. Step 4: Simplify right side
    686,585.10x = 631,419,943,982.54
  5. Step 5: Solve for x
    x = 631,419,943,982.54/686,585.10
  6. Step 6: Final answer
    x = 919,652.85

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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.