Home / 615,619.80-923,429.70-605,122.20

Finding the Fourth Proportional to 615,619.80, 923,429.70 and 605,122.20

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Solution

The fourth proportional to 615,619.80, 923,429.70 and 605,122.20 is: 907,683.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,619.80 : 923,429.70 = 605,122.20 : x
  2. Step 2: Convert to fraction form
    615,619.80/923,429.70 = 605,122.20/x
  3. Step 3: Cross multiply
    615,619.80x = 923,429.70 × 605,122.20
  4. Step 4: Simplify right side
    615,619.80x = 558,787,811,609.34
  5. Step 5: Solve for x
    x = 558,787,811,609.34/615,619.80
  6. Step 6: Final answer
    x = 907,683.30

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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.