Home / 690,921.59-1,036,283.96-217,594.64

Finding the Fourth Proportional to 690,921.59, 1,036,283.96 and 217,594.64

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Solution

The fourth proportional to 690,921.59, 1,036,283.96 and 217,594.64 is: 326,360.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,921.59 : 1,036,283.96 = 217,594.64 : x
  2. Step 2: Convert to fraction form
    690,921.59/1,036,283.96 = 217,594.64/x
  3. Step 3: Cross multiply
    690,921.59x = 1,036,283.96 × 217,594.64
  4. Step 4: Simplify right side
    690,921.59x = 225,489,828,944.58
  5. Step 5: Solve for x
    x = 225,489,828,944.58/690,921.59
  6. Step 6: Final answer
    x = 326,360.96

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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.