Home / 621,857.10-933,332.40-368,821.20

Finding the Fourth Proportional to 621,857.10, 933,332.40 and 368,821.20

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Solution

The fourth proportional to 621,857.10, 933,332.40 and 368,821.20 is: 553,556.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,857.10 : 933,332.40 = 368,821.20 : x
  2. Step 2: Convert to fraction form
    621,857.10/933,332.40 = 368,821.20/x
  3. Step 3: Cross multiply
    621,857.10x = 933,332.40 × 368,821.20
  4. Step 4: Simplify right side
    621,857.10x = 344,232,775,766.88
  5. Step 5: Solve for x
    x = 344,232,775,766.88/621,857.10
  6. Step 6: Final answer
    x = 553,556.08

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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.