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Finding the Fourth Proportional to 2,078,355.03, 2,867,313.90 and 1,207,041.42

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Solution

The fourth proportional to 2,078,355.03, 2,867,313.90 and 1,207,041.42 is: 1,665,243.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,355.03 : 2,867,313.90 = 1,207,041.42 : x
  2. Step 2: Convert to fraction form
    2,078,355.03/2,867,313.90 = 1,207,041.42/x
  3. Step 3: Cross multiply
    2,078,355.03x = 2,867,313.90 × 1,207,041.42
  4. Step 4: Simplify right side
    2,078,355.03x = 3,460,966,641,441.74
  5. Step 5: Solve for x
    x = 3,460,966,641,441.74/2,078,355.03
  6. Step 6: Final answer
    x = 1,665,243.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.