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Finding the Fourth Proportional to 370,937.80, 556,406.70 and 368,313.40

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Solution

The fourth proportional to 370,937.80, 556,406.70 and 368,313.40 is: 552,470.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,937.80 : 556,406.70 = 368,313.40 : x
  2. Step 2: Convert to fraction form
    370,937.80/556,406.70 = 368,313.40/x
  3. Step 3: Cross multiply
    370,937.80x = 556,406.70 × 368,313.40
  4. Step 4: Simplify right side
    370,937.80x = 204,932,043,459.78
  5. Step 5: Solve for x
    x = 204,932,043,459.78/370,937.80
  6. Step 6: Final answer
    x = 552,470.10

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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.