Home / 619,849.94-930,133.89-259,988.81

Finding the Fourth Proportional to 619,849.94, 930,133.89 and 259,988.81

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Solution

The fourth proportional to 619,849.94, 930,133.89 and 259,988.81 is: 390,133.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,849.94 : 930,133.89 = 259,988.81 : x
  2. Step 2: Convert to fraction form
    619,849.94/930,133.89 = 259,988.81/x
  3. Step 3: Cross multiply
    619,849.94x = 930,133.89 × 259,988.81
  4. Step 4: Simplify right side
    619,849.94x = 241,824,398,551.10
  5. Step 5: Solve for x
    x = 241,824,398,551.10/619,849.94
  6. Step 6: Final answer
    x = 390,133.78

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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.