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Finding the Fourth Proportional to 1,774,845.20, 2,663,938.20 and 934,000.40

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Solution

The fourth proportional to 1,774,845.20, 2,663,938.20 and 934,000.40 is: 1,401,879.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,774,845.20 : 2,663,938.20 = 934,000.40 : x
  2. Step 2: Convert to fraction form
    1,774,845.20/2,663,938.20 = 934,000.40/x
  3. Step 3: Cross multiply
    1,774,845.20x = 2,663,938.20 × 934,000.40
  4. Step 4: Simplify right side
    1,774,845.20x = 2,488,119,344,375.28
  5. Step 5: Solve for x
    x = 2,488,119,344,375.28/1,774,845.20
  6. Step 6: Final answer
    x = 1,401,879.64

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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.