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Finding the Fourth Proportional to 1,997,783.03, 2,995,742.88 and 1,037,980.61

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Solution

The fourth proportional to 1,997,783.03, 2,995,742.88 and 1,037,980.61 is: 1,556,486.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997,783.03 : 2,995,742.88 = 1,037,980.61 : x
  2. Step 2: Convert to fraction form
    1,997,783.03/2,995,742.88 = 1,037,980.61/x
  3. Step 3: Cross multiply
    1,997,783.03x = 2,995,742.88 × 1,037,980.61
  4. Step 4: Simplify right side
    1,997,783.03x = 3,109,523,021,985.56
  5. Step 5: Solve for x
    x = 3,109,523,021,985.56/1,997,783.03
  6. Step 6: Final answer
    x = 1,556,486.85

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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.