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Finding the Fourth Proportional to 702,188.55, 969,020.28 and 379,898.46

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Solution

The fourth proportional to 702,188.55, 969,020.28 and 379,898.46 is: 524,259.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,188.55 : 969,020.28 = 379,898.46 : x
  2. Step 2: Convert to fraction form
    702,188.55/969,020.28 = 379,898.46/x
  3. Step 3: Cross multiply
    702,188.55x = 969,020.28 × 379,898.46
  4. Step 4: Simplify right side
    702,188.55x = 368,129,312,080.77
  5. Step 5: Solve for x
    x = 368,129,312,080.77/702,188.55
  6. Step 6: Final answer
    x = 524,259.92

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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.