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Finding the Fourth Proportional to 587,460.18, 881,209.41 and 279,645.40

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Solution

The fourth proportional to 587,460.18, 881,209.41 and 279,645.40 is: 419,477.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,460.18 : 881,209.41 = 279,645.40 : x
  2. Step 2: Convert to fraction form
    587,460.18/881,209.41 = 279,645.40/x
  3. Step 3: Cross multiply
    587,460.18x = 881,209.41 × 279,645.40
  4. Step 4: Simplify right side
    587,460.18x = 246,426,157,943.21
  5. Step 5: Solve for x
    x = 246,426,157,943.21/587,460.18
  6. Step 6: Final answer
    x = 419,477.21

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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.