Home / 816,527.79-1,126,871.19-453,981.51

Finding the Fourth Proportional to 816,527.79, 1,126,871.19 and 453,981.51

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Solution

The fourth proportional to 816,527.79, 1,126,871.19 and 453,981.51 is: 626,529.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,527.79 : 1,126,871.19 = 453,981.51 : x
  2. Step 2: Convert to fraction form
    816,527.79/1,126,871.19 = 453,981.51/x
  3. Step 3: Cross multiply
    816,527.79x = 1,126,871.19 × 453,981.51
  4. Step 4: Simplify right side
    816,527.79x = 511,578,684,411.70
  5. Step 5: Solve for x
    x = 511,578,684,411.70/816,527.79
  6. Step 6: Final answer
    x = 626,529.42

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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.