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Finding the Fourth Proportional to 702,281.56, 969,141.65 and 379,984.59

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Solution

The fourth proportional to 702,281.56, 969,141.65 and 379,984.59 is: 524,375.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,281.56 : 969,141.65 = 379,984.59 : x
  2. Step 2: Convert to fraction form
    702,281.56/969,141.65 = 379,984.59/x
  3. Step 3: Cross multiply
    702,281.56x = 969,141.65 × 379,984.59
  4. Step 4: Simplify right side
    702,281.56x = 368,258,892,527.17
  5. Step 5: Solve for x
    x = 368,258,892,527.17/702,281.56
  6. Step 6: Final answer
    x = 524,375.00

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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.