Home / 646,330.56-969,938.72-225,606.40

Finding the Fourth Proportional to 646,330.56, 969,938.72 and 225,606.40

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Solution

The fourth proportional to 646,330.56, 969,938.72 and 225,606.40 is: 338,564.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,330.56 : 969,938.72 = 225,606.40 : x
  2. Step 2: Convert to fraction form
    646,330.56/969,938.72 = 225,606.40/x
  3. Step 3: Cross multiply
    646,330.56x = 969,938.72 × 225,606.40
  4. Step 4: Simplify right side
    646,330.56x = 218,824,382,839.81
  5. Step 5: Solve for x
    x = 218,824,382,839.81/646,330.56
  6. Step 6: Final answer
    x = 338,564.19

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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.