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Finding the Fourth Proportional to 377,779.16, 567,455.70 and 318,730.52

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Solution

The fourth proportional to 377,779.16, 567,455.70 and 318,730.52 is: 478,759.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,779.16 : 567,455.70 = 318,730.52 : x
  2. Step 2: Convert to fraction form
    377,779.16/567,455.70 = 318,730.52/x
  3. Step 3: Cross multiply
    377,779.16x = 567,455.70 × 318,730.52
  4. Step 4: Simplify right side
    377,779.16x = 180,865,450,337.96
  5. Step 5: Solve for x
    x = 180,865,450,337.96/377,779.16
  6. Step 6: Final answer
    x = 478,759.73

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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.