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Finding the Fourth Proportional to 653,078.40, 978,321.60 and 575,145.60

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Solution

The fourth proportional to 653,078.40, 978,321.60 and 575,145.60 is: 861,577.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,078.40 : 978,321.60 = 575,145.60 : x
  2. Step 2: Convert to fraction form
    653,078.40/978,321.60 = 575,145.60/x
  3. Step 3: Cross multiply
    653,078.40x = 978,321.60 × 575,145.60
  4. Step 4: Simplify right side
    653,078.40x = 562,677,363,624.96
  5. Step 5: Solve for x
    x = 562,677,363,624.96/653,078.40
  6. Step 6: Final answer
    x = 861,577.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.