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Finding the Fourth Proportional to 876,177.84, 1,209,181.84 and 494,196.40

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Solution

The fourth proportional to 876,177.84, 1,209,181.84 and 494,196.40 is: 682,022.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,177.84 : 1,209,181.84 = 494,196.40 : x
  2. Step 2: Convert to fraction form
    876,177.84/1,209,181.84 = 494,196.40/x
  3. Step 3: Cross multiply
    876,177.84x = 1,209,181.84 × 494,196.40
  4. Step 4: Simplify right side
    876,177.84x = 597,573,312,273.38
  5. Step 5: Solve for x
    x = 597,573,312,273.38/876,177.84
  6. Step 6: Final answer
    x = 682,022.86

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Double scale
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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.