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Finding the Fourth Proportional to 621,802.10, 933,249.90 and 368,766.20

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Solution

The fourth proportional to 621,802.10, 933,249.90 and 368,766.20 is: 553,473.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,802.10 : 933,249.90 = 368,766.20 : x
  2. Step 2: Convert to fraction form
    621,802.10/933,249.90 = 368,766.20/x
  3. Step 3: Cross multiply
    621,802.10x = 933,249.90 × 368,766.20
  4. Step 4: Simplify right side
    621,802.10x = 344,151,019,273.38
  5. Step 5: Solve for x
    x = 344,151,019,273.38/621,802.10
  6. Step 6: Final answer
    x = 553,473.56

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1.5x scale

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.