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Finding the Fourth Proportional to 330,544.20, 495,878.51 and 235,538.70

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Solution

The fourth proportional to 330,544.20, 495,878.51 and 235,538.70 is: 353,352.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,544.20 : 495,878.51 = 235,538.70 : x
  2. Step 2: Convert to fraction form
    330,544.20/495,878.51 = 235,538.70/x
  3. Step 3: Cross multiply
    330,544.20x = 495,878.51 × 235,538.70
  4. Step 4: Simplify right side
    330,544.20x = 116,798,579,603.34
  5. Step 5: Solve for x
    x = 116,798,579,603.34/330,544.20
  6. Step 6: Final answer
    x = 353,352.38

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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.