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Finding the Fourth Proportional to 638,199.33, 880,940.64 and 570,098.04

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Solution

The fourth proportional to 638,199.33, 880,940.64 and 570,098.04 is: 786,936.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,199.33 : 880,940.64 = 570,098.04 : x
  2. Step 2: Convert to fraction form
    638,199.33/880,940.64 = 570,098.04/x
  3. Step 3: Cross multiply
    638,199.33x = 880,940.64 × 570,098.04
  4. Step 4: Simplify right side
    638,199.33x = 502,222,532,220.35
  5. Step 5: Solve for x
    x = 502,222,532,220.35/638,199.33
  6. Step 6: Final answer
    x = 786,936.79

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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.