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Finding the Fourth Proportional to 587,626.40, 881,550.25 and 418,727.75

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Solution

The fourth proportional to 587,626.40, 881,550.25 and 418,727.75 is: 628,170.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,626.40 : 881,550.25 = 418,727.75 : x
  2. Step 2: Convert to fraction form
    587,626.40/881,550.25 = 418,727.75/x
  3. Step 3: Cross multiply
    587,626.40x = 881,550.25 × 418,727.75
  4. Step 4: Simplify right side
    587,626.40x = 369,129,547,239.87
  5. Step 5: Solve for x
    x = 369,129,547,239.87/587,626.40
  6. Step 6: Final answer
    x = 628,170.46

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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.