Home / 415,836.84-623,661.13-190,981.11

Finding the Fourth Proportional to 415,836.84, 623,661.13 and 190,981.11

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Solution

The fourth proportional to 415,836.84, 623,661.13 and 190,981.11 is: 286,428.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,836.84 : 623,661.13 = 190,981.11 : x
  2. Step 2: Convert to fraction form
    415,836.84/623,661.13 = 190,981.11/x
  3. Step 3: Cross multiply
    415,836.84x = 623,661.13 × 190,981.11
  4. Step 4: Simplify right side
    415,836.84x = 119,107,494,871.25
  5. Step 5: Solve for x
    x = 119,107,494,871.25/415,836.84
  6. Step 6: Final answer
    x = 286,428.43

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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.