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Finding the Fourth Proportional to 622,653.70, 933,980.55 and 370,711.30

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Solution

The fourth proportional to 622,653.70, 933,980.55 and 370,711.30 is: 556,066.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,653.70 : 933,980.55 = 370,711.30 : x
  2. Step 2: Convert to fraction form
    622,653.70/933,980.55 = 370,711.30/x
  3. Step 3: Cross multiply
    622,653.70x = 933,980.55 × 370,711.30
  4. Step 4: Simplify right side
    622,653.70x = 346,237,143,865.22
  5. Step 5: Solve for x
    x = 346,237,143,865.22/622,653.70
  6. Step 6: Final answer
    x = 556,066.95

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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.