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Finding the Fourth Proportional to 370,825.40, 556,410.90 and 277,513.40

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Solution

The fourth proportional to 370,825.40, 556,410.90 and 277,513.40 is: 416,399.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,825.40 : 556,410.90 = 277,513.40 : x
  2. Step 2: Convert to fraction form
    370,825.40/556,410.90 = 277,513.40/x
  3. Step 3: Cross multiply
    370,825.40x = 556,410.90 × 277,513.40
  4. Step 4: Simplify right side
    370,825.40x = 154,411,480,656.06
  5. Step 5: Solve for x
    x = 154,411,480,656.06/370,825.40
  6. Step 6: Final answer
    x = 416,399.42

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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.