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Finding the Fourth Proportional to 363,935.70, 545,903.55 and 353,567.70

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Solution

The fourth proportional to 363,935.70, 545,903.55 and 353,567.70 is: 530,351.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,935.70 : 545,903.55 = 353,567.70 : x
  2. Step 2: Convert to fraction form
    363,935.70/545,903.55 = 353,567.70/x
  3. Step 3: Cross multiply
    363,935.70x = 545,903.55 × 353,567.70
  4. Step 4: Simplify right side
    363,935.70x = 193,013,862,595.34
  5. Step 5: Solve for x
    x = 193,013,862,595.34/363,935.70
  6. Step 6: Final answer
    x = 530,351.55

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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.