Home / 714,887.84-986,928.23-551,186.78

Finding the Fourth Proportional to 714,887.84, 986,928.23 and 551,186.78

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Solution

The fourth proportional to 714,887.84, 986,928.23 and 551,186.78 is: 760,933.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,887.84 : 986,928.23 = 551,186.78 : x
  2. Step 2: Convert to fraction form
    714,887.84/986,928.23 = 551,186.78/x
  3. Step 3: Cross multiply
    714,887.84x = 986,928.23 × 551,186.78
  4. Step 4: Simplify right side
    714,887.84x = 543,981,789,628.13
  5. Step 5: Solve for x
    x = 543,981,789,628.13/714,887.84
  6. Step 6: Final answer
    x = 760,933.05

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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.