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Finding the Fourth Proportional to 4,479,492.38, 6,719,264.08 and 1,113,699.38

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Solution

The fourth proportional to 4,479,492.38, 6,719,264.08 and 1,113,699.38 is: 1,670,555.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,479,492.38 : 6,719,264.08 = 1,113,699.38 : x
  2. Step 2: Convert to fraction form
    4,479,492.38/6,719,264.08 = 1,113,699.38/x
  3. Step 3: Cross multiply
    4,479,492.38x = 6,719,264.08 × 1,113,699.38
  4. Step 4: Simplify right side
    4,479,492.38x = 7,483,240,203,571.70
  5. Step 5: Solve for x
    x = 7,483,240,203,571.70/4,479,492.38
  6. Step 6: Final answer
    x = 1,670,555.41

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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.