Home / 686,028.40-1,031,807.40-614,143.60

Finding the Fourth Proportional to 686,028.40, 1,031,807.40 and 614,143.60

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Solution

The fourth proportional to 686,028.40, 1,031,807.40 and 614,143.60 is: 923,690.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,028.40 : 1,031,807.40 = 614,143.60 : x
  2. Step 2: Convert to fraction form
    686,028.40/1,031,807.40 = 614,143.60/x
  3. Step 3: Cross multiply
    686,028.40x = 1,031,807.40 × 614,143.60
  4. Step 4: Simplify right side
    686,028.40x = 633,677,911,142.64
  5. Step 5: Solve for x
    x = 633,677,911,142.64/686,028.40
  6. Step 6: Final answer
    x = 923,690.49

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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.