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Finding the Fourth Proportional to 605,037.60, 907,556.40 and 578,465.55

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Solution

The fourth proportional to 605,037.60, 907,556.40 and 578,465.55 is: 867,698.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,037.60 : 907,556.40 = 578,465.55 : x
  2. Step 2: Convert to fraction form
    605,037.60/907,556.40 = 578,465.55/x
  3. Step 3: Cross multiply
    605,037.60x = 907,556.40 × 578,465.55
  4. Step 4: Simplify right side
    605,037.60x = 524,990,112,082.02
  5. Step 5: Solve for x
    x = 524,990,112,082.02/605,037.60
  6. Step 6: Final answer
    x = 867,698.33

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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.