Home / 956,608.50-1,320,119.73-554,433.78

Finding the Fourth Proportional to 956,608.50, 1,320,119.73 and 554,433.78

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Solution

The fourth proportional to 956,608.50, 1,320,119.73 and 554,433.78 is: 765,118.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    956,608.50 : 1,320,119.73 = 554,433.78 : x
  2. Step 2: Convert to fraction form
    956,608.50/1,320,119.73 = 554,433.78/x
  3. Step 3: Cross multiply
    956,608.50x = 1,320,119.73 × 554,433.78
  4. Step 4: Simplify right side
    956,608.50x = 731,918,971,956.48
  5. Step 5: Solve for x
    x = 731,918,971,956.48/956,608.50
  6. Step 6: Final answer
    x = 765,118.62

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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.