Home / 712,017.36-982,587.09-385,330.41

Finding the Fourth Proportional to 712,017.36, 982,587.09 and 385,330.41

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Solution

The fourth proportional to 712,017.36, 982,587.09 and 385,330.41 is: 531,757.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,017.36 : 982,587.09 = 385,330.41 : x
  2. Step 2: Convert to fraction form
    712,017.36/982,587.09 = 385,330.41/x
  3. Step 3: Cross multiply
    712,017.36x = 982,587.09 × 385,330.41
  4. Step 4: Simplify right side
    712,017.36x = 378,620,686,250.41
  5. Step 5: Solve for x
    x = 378,620,686,250.41/712,017.36
  6. Step 6: Final answer
    x = 531,757.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.