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Finding the Fourth Proportional to 652,911.40, 978,200.70 and 533,938.60

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Solution

The fourth proportional to 652,911.40, 978,200.70 and 533,938.60 is: 799,954.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,911.40 : 978,200.70 = 533,938.60 : x
  2. Step 2: Convert to fraction form
    652,911.40/978,200.70 = 533,938.60/x
  3. Step 3: Cross multiply
    652,911.40x = 978,200.70 × 533,938.60
  4. Step 4: Simplify right side
    652,911.40x = 522,299,112,277.02
  5. Step 5: Solve for x
    x = 522,299,112,277.02/652,911.40
  6. Step 6: Final answer
    x = 799,954.04

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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.