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Finding the Fourth Proportional to 5,323,602.85, 7,985,404.28 and 3,622,991.65

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Solution

The fourth proportional to 5,323,602.85, 7,985,404.28 and 3,622,991.65 is: 5,434,487.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,323,602.85 : 7,985,404.28 = 3,622,991.65 : x
  2. Step 2: Convert to fraction form
    5,323,602.85/7,985,404.28 = 3,622,991.65/x
  3. Step 3: Cross multiply
    5,323,602.85x = 7,985,404.28 × 3,622,991.65
  4. Step 4: Simplify right side
    5,323,602.85x = 28,931,053,010,199.30
  5. Step 5: Solve for x
    x = 28,931,053,010,199.30/5,323,602.85
  6. Step 6: Final answer
    x = 5,434,487.48

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Double scale
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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.