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Finding the Fourth Proportional to 653,099.40, 978,353.10 and 575,166.60

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Solution

The fourth proportional to 653,099.40, 978,353.10 and 575,166.60 is: 861,608.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,099.40 : 978,353.10 = 575,166.60 : x
  2. Step 2: Convert to fraction form
    653,099.40/978,353.10 = 575,166.60/x
  3. Step 3: Cross multiply
    653,099.40x = 978,353.10 × 575,166.60
  4. Step 4: Simplify right side
    653,099.40x = 562,716,026,126.46
  5. Step 5: Solve for x
    x = 562,716,026,126.46/653,099.40
  6. Step 6: Final answer
    x = 861,608.55

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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.