Home / 813,491.84-1,122,239.04-511,852.16

Finding the Fourth Proportional to 813,491.84, 1,122,239.04 and 511,852.16

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Solution

The fourth proportional to 813,491.84, 1,122,239.04 and 511,852.16 is: 706,117.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,491.84 : 1,122,239.04 = 511,852.16 : x
  2. Step 2: Convert to fraction form
    813,491.84/1,122,239.04 = 511,852.16/x
  3. Step 3: Cross multiply
    813,491.84x = 1,122,239.04 × 511,852.16
  4. Step 4: Simplify right side
    813,491.84x = 574,420,476,660.33
  5. Step 5: Solve for x
    x = 574,420,476,660.33/813,491.84
  6. Step 6: Final answer
    x = 706,117.07

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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.